Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing

Alena Heimer

Bib: 12277FAge: N/A

MO

Boston Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 29021
Top 33%
Gender (Female)
#0 / 12578
Top 16%
Age Group (F18-39)
#0 / 5716
Top 29%
Race Day Weather
51°/41°F
overcast clouds
Personalized for Alena

Your Race Performance Report is ready

See how your race unfolded, where your performance changed, and what to focus on next.

Personalized by MyRace AI
Preview insight
Your pace by distance
Fastest segment · 6:54/mi at mile 9.3

Your report includes

  • Race Overview
  • Pacing & Splits
  • Performance Analysis
  • Segment Analysis
  • Passing Analysis
  • Improvement Opportunities
One-time purchase · Instant access · Downloadable PDF · Shareable report

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
21:58
3.11 mi
Rank: #9134
Start5K
21:58 | 7:05/mi
10K
43:26
6.21 mi
Rank: #8518 (+616)
5K10K
21:28 | 6:55/mi
15K
1:04:51
9.32 mi
Rank: #8274 (+244)
10K15K
21:25 | 6:54/mi
20K
1:27:30
12.43 mi
Rank: #8663 (-389)
15K20K
22:39 | 7:18/mi
HALF
1:32:19
13.11 mi
Rank: #8680 (-17)
20KHALF
4:49 | 7:04/mi
25K
1:50:03
15.53 mi
Rank: #8805 (-125)
HALF25K
17:44 | 7:19/mi
30K
2:14:27
18.64 mi
Rank: #9355 (-550)
25K30K
24:24 | 7:52/mi
20M
2:25:14
20.00 mi
Rank: #9557 (-202)
30K20M
10:47 | 7:57/mi
21M
2:33:40
21.00 mi
Rank: #9676 (-119)
20M21M
8:26 | 8:26/mi
35K
2:39:22
21.75 mi
Rank: #9719 (-43)
21M35K
5:42 | 7:38/mi
23M
2:48:36
23.00 mi
Rank: #9546 (+173)
35K23M
9:14 | 7:23/mi
24M
2:55:48
24.00 mi
Rank: #9413 (+133)
23M24M
7:12 | 7:12/mi
40K
3:02:25
24.85 mi
Rank: #9450 (-37)
24M40K
6:37 | 7:45/mi
25.2M
3:05:20
25.20 mi
Rank: #9475 (-25)
40K25.2M
2:55 | 8:28/mi
FINISH
3:12:46
26.22 mi
Rank: #9448 (+27)
25.2MFINISH
7:26 | 7:18/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:32:19
Pace7:03 /mi
2nd Half
Distance13.11 mi
Time1:40:27
Pace7:40 /mi
📊Positive Split: 8.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:0921:587:0521:58
7:05
-
10K
6.21 mi11:11:3743:267:0021:28
6:55
-0:10
15K
9.32 mi11:33:021:04:516:5821:25
6:54
-0:01
20K
12.43 mi11:55:411:27:307:0322:39
7:18
+0:24
HALF
13.11 mi12:00:301:32:197:034:49
7:04
-0:14
25K
15.53 mi12:18:141:50:037:0617:44
7:19
+0:15
30K
18.64 mi12:42:382:14:277:1324:24
7:52
+0:33
20M
20.00 mi12:53:252:25:147:1610:47
7:57
+0:05
21M
21.00 mi13:01:512:33:407:208:26
8:26
+0:29
35K
21.75 mi13:07:332:39:227:205:42
7:38
-0:48
23M
23.00 mi13:16:472:48:367:209:14
7:23
-0:15
24M
24.00 mi13:23:592:55:487:207:12
7:12
-0:11
40K
24.85 mi13:30:363:02:257:216:37
7:45
+0:33
25.2M
25.20 mi13:33:313:05:207:222:55
8:28
+0:43
FINISH
26.22 mi13:40:573:12:467:227:26
7:18
-1:10

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

6:54 /mi

Average Pace

7:21 /mi

Slowest Pace

8:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

47:42

25% of race

Time at Steady Pace

1:26:13

45% of race

Time at Slower Pace

58:51

31% of race

Average Pace: 7:21 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:50:0921:587:0521:58
7:05
#9134
10K
6.21 mi11:11:3743:267:0021:28
6:55
#8518
15K
9.32 mi11:33:021:04:516:5821:25
6:54
#8274
20K
12.43 mi11:55:411:27:307:0322:39
7:18
#8663
HALF
13.11 mi12:00:301:32:197:034:49
7:04
#8680
25K
15.53 mi12:18:141:50:037:0617:44
7:19
#8805
30K
18.64 mi12:42:382:14:277:1324:24
7:52
#9355
20M
20.00 mi12:53:252:25:147:1610:47
7:57
#9557
21M
21.00 mi13:01:512:33:407:208:26
8:26
#9676
35K
21.75 mi13:07:332:39:227:205:42
7:38
#9719
23M
23.00 mi13:16:472:48:367:209:14
7:23
#9546
24M
24.00 mi13:23:592:55:487:207:12
7:12
#9413
40K
24.85 mi13:30:363:02:257:216:37
7:45
#9450
25.2M
25.20 mi13:33:313:05:207:222:55
8:28
#9475
FINISH
26.22 mi13:40:573:12:467:227:26
7:18
#9448
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9134146714677748(Top 27%)1032(Top 8%)1032(Top 18%)
10K6.21 mi3.10 mi8518+6161272+1951272+1958016(Top 28%)1098(Top 9%)1098(Top 19%)
15K9.32 mi3.11 mi8274+2441201+711201+717748(Top 27%)1032(Top 8%)1032(Top 18%)
20K12.43 mi3.11 mi8663-3891351-1501351-15010094(Top 35%)2092(Top 17%)2092(Top 37%)
HALF13.11 mi0.68 mi8680-171363-121363-129247(Top 32%)1628(Top 13%)1628(Top 28%)
25K15.53 mi2.42 mi8805-1251427-641427-649830(Top 34%)2038(Top 16%)2038(Top 36%)
30K18.64 mi3.11 mi9355-5501715-2881715-28812383(Top 43%)3512(Top 28%)3512(Top 61%)
20M20.00 mi1.36 mi9557-2021838-1231838-12312381(Top 43%)3595(Top 29%)3595(Top 63%)
21M21.00 mi1.00 mi9676-1191931-931931-9312691(Top 44%)3876(Top 31%)3876(Top 68%)
35K21.75 mi0.75 mi9719-431963-321963-3211726(Top 40%)3370(Top 27%)3370(Top 59%)
23M23.00 mi1.25 mi9546+1731913+501913+508007(Top 28%)1644(Top 13%)1644(Top 29%)
24M24.00 mi1.00 mi9413+1331872+411872+417905(Top 27%)1687(Top 13%)1687(Top 30%)
40K24.85 mi0.85 mi9450-371915-431915-4310610(Top 37%)3050(Top 24%)3050(Top 53%)
25.2M25.20 mi0.35 mi9475-251939-241939-2411364(Top 39%)3520(Top 28%)3520(Top 62%)
FINISH26.22 mi1.02 mi9448+271964-251964-259868(Top 34%)2771(Top 22%)2771(Top 48%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21
+97ft-345ft

Overall

7748

Females

1032

F18-39

1032

5K→10K

3.1 - 6.2 mi

Top 28%
×5
+79ft-138ft

Overall

8016

Females

1098

F18-39

1098

10K→15K

6.2 - 9.3 mi

Top 27%
×3
+67ft-78ft

Overall

7748

Females

1032

F18-39

1032

15K→20K

9.3 - 12.4 mi

Top 35%
×5
+106ft-86ft

Overall

10094

Females

2092

F18-39

2092

20K→HALF

12.4 - 13.1 mi

Top 32%
×2
+19ft-37ft

Overall

9247

Females

1628

F18-39

1628

HALF→25K

13.1 - 15.5 mi

Top 34%
×4
+66ft-88ft

Overall

9830

Females

2038

F18-39

2038

25K→30K

15.5 - 18.6 mi

Top 43%
×9
+181ft-148ft

Overall

12383

Females

3512

F18-39

3512

30K→20M

18.6 - 20.0 mi

Top 43%
×5
+64ft-50ft

Overall

12381

Females

3595

F18-39

3595

20M→21M

20.0 - 21.0 mi

Top 44%
×8
+106ft-24ft

Overall

12691

Females

3876

F18-39

3876

21M→35K

21.0 - 21.8 mi

Top 40%
×7
+17ft-86ft

Overall

11726

Females

3370

F18-39

3370

35K→23M

21.8 - 23.0 mi

Top 28%
×5
+23ft-63ft

Overall

8007

Females

1644

F18-39

1644

23M→24M

23.0 - 24.0 mi

Top 27%
×6
+12ft-82ft

Overall

7905

Females

1687

F18-39

1687

24M→40K

24.0 - 24.9 mi

Top 37%
×1
+6ft-20ft

Overall

10610

Females

3050

F18-39

3050

40K→25.2M

24.9 - 25.2 mi

Top 39%
×1
+13ft-16ft

Overall

11364

Females

3520

F18-39

3520

25.2M→FINISH

25.2 - 26.2 mi

Top 34%
×2
+22ft-21ft

Overall

9868

Females

2771

F18-39

2771

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1793*
Passed By
1411
Net Change
-314
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9134
5K10K653*37+616#9134#8518
10K15K284*40+244#8518#8274
15K20K46200-389#8274#8663
20KHALF2037-17#8663#8680
HALF25K75200-125#8680#8805
25K30K65200-550#8805#9355
30K20M44200-202#9355#9557
20M21M47166-119#9557#9676
21M35K4184-43#9676#9719
35K23M19118+173#9719#9546
23M24M14613+133#9546#9413
24M40K6299-37#9413#9450
40K25.2M3055-25#9450#9475
25.2MFINISH8962+27#9475#9448
TOTALS1793*1411-314

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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