Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing

Allison Cass

Bib: 15934FAge: N/A

GA

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Top 41%
Masters (Masters Women)
#0 / 6862
Top 26%
Age Group (F50-54)
#0 / 1233
Top 20%
Race Day Weather
51°/41°F
overcast clouds

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
23:51
3.11 mi
Rank: #14354
Start5K
23:51 | 7:41/mi
10K
47:41
6.21 mi
Rank: #14386 (-32)
5K10K
23:50 | 7:41/mi
15K
1:11:36
9.32 mi
Rank: #14397 (-11)
10K15K
23:55 | 7:42/mi
20K
1:35:44
12.43 mi
Rank: #14336 (+61)
15K20K
24:08 | 7:47/mi
HALF
1:41:09
13.11 mi
Rank: #14471 (-135)
20KHALF
5:25 | 7:57/mi
25K
2:01:01
15.53 mi
Rank: #14862 (-391)
HALF25K
19:52 | 8:12/mi
30K
2:27:09
18.64 mi
Rank: #15139 (-277)
25K30K
26:08 | 8:25/mi
20M
2:39:27
20.00 mi
Rank: #15532 (-393)
30K20M
12:18 | 9:04/mi
21M
2:48:08
21.00 mi
Rank: #15419 (+113)
20M21M
8:41 | 8:41/mi
35K
2:54:03
21.75 mi
Rank: #15333 (+86)
21M35K
5:55 | 7:55/mi
23M
3:06:08
23.00 mi
Rank: #15805 (-472)
35K23M
12:05 | 9:40/mi
24M
3:13:58
24.00 mi
Rank: #15659 (+146)
23M24M
7:50 | 7:50/mi
40K
3:20:47
24.85 mi
Rank: #15531 (+128)
24M40K
6:49 | 7:59/mi
25.2M
3:23:43
25.20 mi
Rank: #15461 (+70)
40K25.2M
2:56 | 8:31/mi
FINISH
3:31:36
26.22 mi
Rank: #15380 (+81)
25.2MFINISH
7:53 | 7:45/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:41:09
Pace7:43 /mi
2nd Half
Distance13.11 mi
Time1:50:27
Pace8:26 /mi
📊Positive Split: 9.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:05:2123:517:4123:51
7:41
-
10K
6.21 mi11:29:1147:417:4123:50
7:41
0:00
15K
9.32 mi11:53:061:11:367:4123:55
7:42
+0:01
20K
12.43 mi12:17:141:35:447:4324:08
7:47
+0:05
HALF
13.11 mi12:22:391:41:097:435:25
7:57
+0:10
25K
15.53 mi12:42:312:01:017:4819:52
8:12
+0:15
30K
18.64 mi13:08:392:27:097:5426:08
8:25
+0:13
20M
20.00 mi13:20:572:39:277:5912:18
9:04
+0:39
21M
21.00 mi13:29:382:48:088:018:41
8:41
-0:23
35K
21.75 mi13:35:332:54:038:015:55
7:55
-0:46
23M
23.00 mi13:47:383:06:088:0612:05
9:40
+1:45
24M
24.00 mi13:55:283:13:588:057:50
7:50
-1:50
40K
24.85 mi14:02:173:20:478:056:49
7:59
+0:09
25.2M
25.20 mi14:05:133:23:438:062:56
8:31
+0:32
FINISH
26.22 mi14:13:063:31:368:057:53
7:45
-0:46

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

8:05 /mi

Slowest Pace

9:40 /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

0:00

0% of race

Time at Steady Pace

2:29:28

71% of race

Time at Slower Pace

1:02:08

29% of race

Average Pace: 8:04 /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 mi11:05:2123:517:4123:51
7:41
#14354
10K
6.21 mi11:29:1147:417:4123:50
7:41
#14386
15K
9.32 mi11:53:061:11:367:4123:55
7:42
#14397
20K
12.43 mi12:17:141:35:447:4324:08
7:47
#14336
HALF
13.11 mi12:22:391:41:097:435:25
7:57
#14471
25K
15.53 mi12:42:312:01:017:4819:52
8:12
#14862
30K
18.64 mi13:08:392:27:097:5426:08
8:25
#15139
20M
20.00 mi13:20:572:39:277:5912:18
9:04
#15532
21M
21.00 mi13:29:382:48:088:018:41
8:41
#15419
35K
21.75 mi13:35:332:54:038:015:55
7:55
#15333
23M
23.00 mi13:47:383:06:088:0612:05
9:40
#15805
24M
24.00 mi13:55:283:13:588:057:50
7:50
#15659
40K
24.85 mi14:02:173:20:478:056:49
7:59
#15531
25.2M
25.20 mi14:05:133:23:438:062:56
8:31
#15461
FINISH
26.22 mi14:13:063:31:368:057:53
7:45
#15380
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 mi143544288428814546(Top 50%)4473(Top 36%)4473(Top 363%)
10K6.21 mi3.10 mi14386-324328-404328-4014518(Top 50%)4417(Top 35%)4417(Top 358%)
15K9.32 mi3.11 mi14397-114361-334361-3314546(Top 50%)4473(Top 36%)4473(Top 363%)
20K12.43 mi3.11 mi14336+614333+284333+2814289(Top 49%)4379(Top 35%)4379(Top 355%)
HALF13.11 mi0.68 mi14471-1354411-784411-7816742(Top 58%)5749(Top 46%)5749(Top 466%)
25K15.53 mi2.42 mi14862-3914664-2534664-25316741(Top 58%)5843(Top 46%)5843(Top 474%)
30K18.64 mi3.11 mi15139-2774884-2204884-22016335(Top 56%)5705(Top 45%)5705(Top 463%)
20M20.00 mi1.36 mi15532-3935143-2595143-25919206(Top 66%)7376(Top 59%)7376(Top 598%)
21M21.00 mi1.00 mi15419+1135100+435100+4314319(Top 49%)4755(Top 38%)4755(Top 386%)
35K21.75 mi0.75 mi15333+865062+385062+3813900(Top 48%)4597(Top 37%)4597(Top 373%)
23M23.00 mi1.25 mi15805-4725365-3035365-30321100(Top 73%)8515(Top 68%)8515(Top 691%)
24M24.00 mi1.00 mi15659+1465296+695296+6912616(Top 43%)4055(Top 32%)4055(Top 329%)
40K24.85 mi0.85 mi15531+1285242+545242+5412378(Top 43%)3991(Top 32%)3991(Top 324%)
25.2M25.20 mi0.35 mi15461+705218+245218+2411789(Top 41%)3776(Top 30%)3776(Top 306%)
FINISH26.22 mi1.02 mi15380+815182+365182+3613326(Top 46%)4570(Top 36%)4570(Top 371%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21
+97ft-345ft

Overall

14546

Females

4473

F50-54

4473

5K→10K

3.1 - 6.2 mi

Top 50%
×5
+79ft-138ft

Overall

14518

Females

4417

F50-54

4417

10K→15K

6.2 - 9.3 mi

Top 50%
×3
+67ft-78ft

Overall

14546

Females

4473

F50-54

4473

15K→20K

9.3 - 12.4 mi

Top 49%
×5
+106ft-86ft

Overall

14289

Females

4379

F50-54

4379

20K→HALF

12.4 - 13.1 mi

Top 58%
×2
+19ft-37ft

Overall

16742

Females

5749

F50-54

5749

HALF→25K

13.1 - 15.5 mi

Top 58%
×4
+66ft-88ft

Overall

16741

Females

5843

F50-54

5843

25K→30K

15.5 - 18.6 mi

Top 56%
×9
+181ft-148ft

Overall

16335

Females

5705

F50-54

5705

30K→20M

18.6 - 20.0 mi

Top 66%
×5
+64ft-50ft

Overall

19206

Females

7376

F50-54

7376

20M→21M

20.0 - 21.0 mi

Top 49%
×8
+106ft-24ft

Overall

14319

Females

4755

F50-54

4755

21M→35K

21.0 - 21.8 mi

Top 48%
×7
+17ft-86ft

Overall

13900

Females

4597

F50-54

4597

35K→23M

21.8 - 23.0 mi

Top 73%
×5
+23ft-63ft

Overall

21100

Females

8515

F50-54

8515

23M→24M

23.0 - 24.0 mi

Top 43%
×6
+12ft-82ft

Overall

12616

Females

4055

F50-54

4055

24M→40K

24.0 - 24.9 mi

Top 43%
×1
+6ft-20ft

Overall

12378

Females

3991

F50-54

3991

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1
+13ft-16ft

Overall

11789

Females

3776

F50-54

3776

25.2M→FINISH

25.2 - 26.2 mi

Top 46%
×2
+22ft-21ft

Overall

13326

Females

4570

F50-54

4570

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1569
Passed By
1578
Net Change
-1026
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14354
5K10K200200-32#14354#14386
10K15K200200-11#14386#14397
15K20K190129+61#14397#14336
20KHALF7142-135#14336#14471
HALF25K57200-391#14471#14862
25K30K123200-277#14862#15139
30K20M34200-393#15139#15532
20M21M14936+113#15532#15419
21M35K10923+86#15419#15333
35K23M27200-472#15333#15805
23M24M1504+146#15805#15659
24M40K14012+128#15659#15531
40K25.2M733+70#15531#15461
25.2MFINISH11029+81#15461#15380
TOTALS15691578-1026
📊

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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