Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing

Erin Niemeyer

Bib: 21662FAge: N/A

NV

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Top 43%
Masters (Masters Women)
#0 / 6862
Top 28%
Age Group (F50-54)
#0 / 1233
Top 22%
Race Day Weather
51°/41°F
overcast clouds
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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
24:59
3.11 mi
Rank: #17239
Start5K
24:59 | 8:03/mi
10K
48:50
6.21 mi
Rank: #15983 (+1256)
5K10K
23:51 | 7:41/mi
15K
1:13:10
9.32 mi
Rank: #15842 (+141)
10K15K
24:20 | 7:50/mi
20K
1:37:53
12.43 mi
Rank: #15793 (+49)
15K20K
24:43 | 7:58/mi
HALF
1:43:12
13.11 mi
Rank: #15790 (+3)
20KHALF
5:19 | 7:48/mi
25K
2:02:49
15.53 mi
Rank: #15829 (-39)
HALF25K
19:37 | 8:06/mi
30K
2:28:43
18.64 mi
Rank: #15831 (-2)
25K30K
25:54 | 8:21/mi
20M
2:40:16
20.00 mi
Rank: #15852 (-21)
30K20M
11:33 | 8:31/mi
21M
2:49:15
21.00 mi
Rank: #15829 (+23)
20M21M
8:59 | 8:59/mi
35K
2:55:14
21.75 mi
Rank: #15758 (+71)
21M35K
5:59 | 8:00/mi
23M
3:05:53
23.00 mi
Rank: #15726 (+32)
35K23M
10:39 | 8:31/mi
24M
3:14:15
24.00 mi
Rank: #15734 (-8)
23M24M
8:22 | 8:22/mi
40K
3:21:18
24.85 mi
Rank: #15667 (+67)
24M40K
7:03 | 8:15/mi
25.2M
3:24:23
25.20 mi
Rank: #15658 (+9)
40K25.2M
3:05 | 8:57/mi
FINISH
3:32:55
26.22 mi
Rank: #15716 (-58)
25.2MFINISH
8:32 | 8:23/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:43:12
Pace7:53 /mi
2nd Half
Distance13.11 mi
Time1:49:43
Pace8:23 /mi
📊Positive Split: 6.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:4224:598:0324:59
8:03
-
10K
6.21 mi11:50:3348:507:5223:51
7:41
-0:22
15K
9.32 mi12:14:531:13:107:5224:20
7:50
+0:09
20K
12.43 mi12:39:361:37:537:5324:43
7:58
+0:08
HALF
13.11 mi12:44:551:43:127:535:19
7:48
-0:10
25K
15.53 mi13:04:322:02:497:5519:37
8:06
+0:18
30K
18.64 mi13:30:262:28:437:5925:54
8:21
+0:15
20M
20.00 mi13:41:592:40:168:0111:33
8:31
+0:10
21M
21.00 mi13:50:582:49:158:048:59
8:59
+0:28
35K
21.75 mi13:56:572:55:148:045:59
8:00
-0:59
23M
23.00 mi14:07:363:05:538:0510:39
8:31
+0:31
24M
24.00 mi14:15:583:14:158:068:22
8:22
-0:09
40K
24.85 mi14:23:013:21:188:067:03
8:15
-0:07
25.2M
25.20 mi14:26:063:24:238:073:05
8:57
+0:42
FINISH
26.22 mi14:34:383:32:558:088:32
8:23
-0:34

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

7:41 /mi

Average Pace

8:08 /mi

Slowest Pace

8:59 /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

2:58:39

84% of race

Time at Steady Pace

34:16

16% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:07 /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 mi11:26:4224:598:0324:59
8:03
#17239
10K
6.21 mi11:50:3348:507:5223:51
7:41
#15983
15K
9.32 mi12:14:531:13:107:5224:20
7:50
#15842
20K
12.43 mi12:39:361:37:537:5324:43
7:58
#15793
HALF
13.11 mi12:44:551:43:127:535:19
7:48
#15790
25K
15.53 mi13:04:322:02:497:5519:37
8:06
#15829
30K
18.64 mi13:30:262:28:437:5925:54
8:21
#15831
20M
20.00 mi13:41:592:40:168:0111:33
8:31
#15852
21M
21.00 mi13:50:582:49:158:048:59
8:59
#15829
35K
21.75 mi13:56:572:55:148:045:59
8:00
#15758
23M
23.00 mi14:07:363:05:538:0510:39
8:31
#15726
24M
24.00 mi14:15:583:14:158:068:22
8:22
#15734
40K
24.85 mi14:23:013:21:188:067:03
8:15
#15667
25.2M
25.20 mi14:26:063:24:238:073:05
8:57
#15658
FINISH
26.22 mi14:34:383:32:558:088:32
8:23
#15716
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi172396052605215637(Top 54%)5135(Top 41%)5135(Top 416%)
10K6.21 mi3.10 mi15983+12565324+7285324+72814570(Top 50%)4444(Top 35%)4444(Top 360%)
15K9.32 mi3.11 mi15842+1415237+875237+8715637(Top 54%)5135(Top 41%)5135(Top 416%)
20K12.43 mi3.11 mi15793+495230+75230+715807(Top 54%)5274(Top 42%)5274(Top 428%)
HALF13.11 mi0.68 mi15790+35226+45226+415612(Top 54%)5112(Top 41%)5112(Top 415%)
25K15.53 mi2.42 mi15829-395263-375263-3716063(Top 55%)5459(Top 43%)5459(Top 443%)
30K18.64 mi3.11 mi15831-25304-415304-4115871(Top 55%)5451(Top 43%)5451(Top 442%)
20M20.00 mi1.36 mi15852-215332-285332-2816233(Top 56%)5770(Top 46%)5770(Top 468%)
21M21.00 mi1.00 mi15829+235338-65338-616056(Top 55%)5721(Top 45%)5721(Top 464%)
35K21.75 mi0.75 mi15758+715306+325306+3214531(Top 50%)4935(Top 39%)4935(Top 400%)
23M23.00 mi1.25 mi15726+325318-125318-1215790(Top 54%)5721(Top 45%)5721(Top 464%)
24M24.00 mi1.00 mi15734-85340-225340-2216134(Top 56%)5984(Top 48%)5984(Top 485%)
40K24.85 mi0.85 mi15667+675327+135327+1314129(Top 49%)4956(Top 39%)4956(Top 402%)
25.2M25.20 mi0.35 mi15658+95327532714450(Top 50%)5142(Top 41%)5142(Top 417%)
FINISH26.22 mi1.02 mi15716-585385-585385-5817473(Top 60%)6759(Top 54%)6759(Top 548%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21
+97ft-345ft

Overall

15637

Females

5135

F50-54

5135

5K→10K

3.1 - 6.2 mi

Top 50%
×5
+79ft-138ft

Overall

14570

Females

4444

F50-54

4444

10K→15K

6.2 - 9.3 mi

Top 54%
×3
+67ft-78ft

Overall

15637

Females

5135

F50-54

5135

15K→20K

9.3 - 12.4 mi

Top 54%
×5
+106ft-86ft

Overall

15807

Females

5274

F50-54

5274

20K→HALF

12.4 - 13.1 mi

Top 54%
×2
+19ft-37ft

Overall

15612

Females

5112

F50-54

5112

HALF→25K

13.1 - 15.5 mi

Top 55%
×4
+66ft-88ft

Overall

16063

Females

5459

F50-54

5459

25K→30K

15.5 - 18.6 mi

Top 55%
×9
+181ft-148ft

Overall

15871

Females

5451

F50-54

5451

30K→20M

18.6 - 20.0 mi

Top 56%
×5
+64ft-50ft

Overall

16233

Females

5770

F50-54

5770

20M→21M

20.0 - 21.0 mi

Top 55%
×8
+106ft-24ft

Overall

16056

Females

5721

F50-54

5721

21M→35K

21.0 - 21.8 mi

Top 50%
×7
+17ft-86ft

Overall

14531

Females

4935

F50-54

4935

35K→23M

21.8 - 23.0 mi

Top 54%
×5
+23ft-63ft

Overall

15790

Females

5721

F50-54

5721

23M→24M

23.0 - 24.0 mi

Top 56%
×6
+12ft-82ft

Overall

16134

Females

5984

F50-54

5984

24M→40K

24.0 - 24.9 mi

Top 49%
×1
+6ft-20ft

Overall

14129

Females

4956

F50-54

4956

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1
+13ft-16ft

Overall

14450

Females

5142

F50-54

5142

25.2M→FINISH

25.2 - 26.2 mi

Top 60%
×2
+22ft-21ft

Overall

17473

Females

6759

F50-54

6759

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2772*
Passed By
1247
Net Change
+1523
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17239
5K10K1287*31+1256#17239#15983
10K15K280*139+141#15983#15842
15K20K206*157+49#15842#15793
20KHALF4542+3#15793#15790
HALF25K121160-39#15790#15829
25K30K200200-2#15829#15831
30K20M80101-21#15831#15852
20M21M11592+23#15852#15829
21M35K9423+71#15829#15758
35K23M10674+32#15758#15726
23M24M7381-8#15726#15734
24M40K9730+67#15734#15667
40K25.2M3223+9#15667#15658
25.2MFINISH3694-58#15658#15716
TOTALS2772*1247+1523

* 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

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OTQ

Olympic Trials Qualifying analysis available

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