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BOSTON MARATHON 2025

Caroline Walsh

Bib: 28239•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
29:07
Rank: #23818
Start → 5K
29:07 | 9:22/mi
10K· 6.21 mi
58:23
Rank: #23871 (-53)
5K → 10K
29:16 | 9:25/mi
15K· 9.32 mi
1:27:22
Rank: #23673 (+198)
10K → 15K
28:59 | 9:20/mi
20K· 12.43 mi
1:56:38
Rank: #23413 (+260)
15K → 20K
29:16 | 9:25/mi
Half· 13.11 mi
2:03:07
Rank: #23416 (-3)
20K → Half
6:29 | 9:30/mi
25K· 15.53 mi
2:26:35
Rank: #23228 (+188)
Half → 25K
23:28 | 9:41/mi
30K· 18.64 mi
2:58:57
Rank: #23089 (+139)
25K → 30K
32:22 | 10:25/mi
20M
3:13:35
Rank: #23089
30K → 20M
14:38 | 10:46/mi
21M
3:24:57
Rank: #23038 (+51)
20M → 21M
11:22 | 11:22/mi
35K· 21.75 mi
3:32:22
Rank: #22991 (+47)
21M → 35K
7:25 | 9:55/mi
23M
3:43:48
Rank: #22690 (+301)
35K → 23M
11:26 | 9:08/mi
24M
3:52:44
Rank: #22477 (+213)
23M → 24M
8:56 | 8:56/mi
40K· 24.85 mi
4:00:26
Rank: #22305 (+172)
24M → 40K
7:42 | 9:00/mi
25.2M
4:03:42
Rank: #22225 (+80)
40K → 25.2M
3:16 | 9:28/mi
Finish· 26.22 mi
4:12:18
Rank: #22026 (+199)
25.2M → Finish
8:36 | 8:26/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:03:07
Pace9:23 /mi
2nd Half
Distance13.11 mi
Time2:09:11
Pace9:51 /mi
📊Positive Split: 4.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:55:1229:079:2229:07
9:22
-
10K
6.21 mi12:24:2858:239:2429:16
9:25
+0:03
15K
9.32 mi12:53:271:27:229:2228:59
9:20
-0:05
20K
12.43 mi13:22:431:56:389:2329:16
9:25
+0:05
Half
13.11 mi13:29:122:03:079:236:29
9:30
+0:05
25K
15.53 mi13:52:402:26:359:2623:28
9:41
+0:11
30K
18.64 mi14:25:022:58:579:3632:22
10:25
+0:44
20M
20.00 mi14:39:403:13:359:4114:38
10:46
+0:21
21M
21.00 mi14:51:023:24:579:4611:22
11:22
+0:36
35K
21.75 mi14:58:273:32:229:467:25
9:55
-1:27
23M
23.00 mi15:09:533:43:489:4411:26
9:08
-0:47
24M
24.00 mi15:18:493:52:449:428:56
8:56
-0:12
40K
24.85 mi15:26:314:00:269:407:42
9:00
+0:04
25.2M
25.20 mi15:29:474:03:429:403:16
9:28
+0:28
Finish
26.22 mi15:38:234:12:189:388:36
8:26
-1:02

Checkpoints & Pacing

📈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

8:26 /mi

Average Pace

9:38 /mi

Slowest Pace

11:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

25:14

10% of race

Time at Steady Pace

2:41:17

64% of race

Time at Slower Pace

1:05:47

26% of race

Average Pace: 9:37 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:55:1229:079:2229:07
9:22
#23818
10K
6.21 mi12:24:2858:239:2429:16
9:25
#23871
15K
9.32 mi12:53:271:27:229:2228:59
9:20
#23673
20K
12.43 mi13:22:431:56:389:2329:16
9:25
#23413
Half
13.11 mi13:29:122:03:079:236:29
9:30
#23416
25K
15.53 mi13:52:402:26:359:2623:28
9:41
#23228
30K
18.64 mi14:25:022:58:579:3632:22
10:25
#23089
20M
20.00 mi14:39:403:13:359:4114:38
10:46
#23089
21M
21.00 mi14:51:023:24:579:4611:22
11:22
#23038
35K
21.75 mi14:58:273:32:229:467:25
9:55
#22991
23M
23.00 mi15:09:533:43:489:4411:26
9:08
#22690
24M
24.00 mi15:18:493:52:449:428:56
8:56
#22477
40K
24.85 mi15:26:314:00:269:407:42
9:00
#22305
25.2M
25.20 mi15:29:474:03:429:403:16
9:28
#22225
Finish
26.22 mi15:38:234:12:189:388:36
8:26
#22026
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi238189595959523298(Top 82%)9261(Top 76%)9261(Top 169%)
10K6.21 mi3.10 mi23871-539614-199614-1923888(Top 84%)9615(Top 79%)9615(Top 176%)
15K9.32 mi3.11 mi23673+1989500+1149500+11423298(Top 82%)9261(Top 76%)9261(Top 169%)
20K12.43 mi3.11 mi23413+2609350+1509350+15022636(Top 80%)8943(Top 73%)8943(Top 164%)
Half13.11 mi0.68 mi23416-39349+19349+123583(Top 83%)9470(Top 77%)9470(Top 173%)
25K15.53 mi2.42 mi23228+1889255+949255+9422443(Top 79%)8899(Top 73%)8899(Top 163%)
30K18.64 mi3.11 mi23089+1399238+179238+1722749(Top 80%)9183(Top 75%)9183(Top 168%)
20M20.00 mi1.36 mi230899263-259263-2523114(Top 81%)9476(Top 77%)9476(Top 173%)
21M21.00 mi1.00 mi23038+519246+179246+1722318(Top 79%)9147(Top 75%)9147(Top 167%)
35K21.75 mi0.75 mi22991+479235+119235+1121676(Top 76%)8863(Top 72%)8863(Top 162%)
23M23.00 mi1.25 mi22690+3019096+1399096+13917041(Top 60%)6484(Top 53%)6484(Top 119%)
24M24.00 mi1.00 mi22477+2138996+1008996+10017065(Top 60%)6547(Top 54%)6547(Top 120%)
40K24.85 mi0.85 mi22305+1728923+738923+7316394(Top 58%)6271(Top 51%)6271(Top 115%)
25.2M25.20 mi0.35 mi22225+808882+418882+4114574(Top 51%)5363(Top 44%)5363(Top 98%)
Finish26.22 mi1.02 mi22026+1998793+898793+8915884(Top 56%)5973(Top 49%)5973(Top 109%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21stories
+97ft-345ft

Overall

23298

Females

9261

F18-39

9261

5K→10K

3.1 - 6.2 mi

Top 84%
×5stories
+79ft-138ft

Overall

23888

Females

9615

F18-39

9615

10K→15K

6.2 - 9.3 mi

Top 82%
×3stories
+67ft-78ft

Overall

23298

Females

9261

F18-39

9261

15K→20K

9.3 - 12.4 mi

Top 80%
×5stories
+106ft-86ft

Overall

22636

Females

8943

F18-39

8943

20K→Half

12.4 - 13.1 mi

Top 83%
×2stories
+19ft-37ft

Overall

23583

Females

9470

F18-39

9470

Half→25K

13.1 - 15.5 mi

Top 79%
×4stories
+66ft-88ft

Overall

22443

Females

8899

F18-39

8899

25K→30K

15.5 - 18.6 mi

Top 80%
×9stories
+181ft-148ft

Overall

22749

Females

9183

F18-39

9183

30K→20M

18.6 - 20.0 mi

Top 81%
×5stories
+64ft-50ft

Overall

23114

Females

9476

F18-39

9476

20M→21M

20.0 - 21.0 mi

Top 79%
×8stories
+106ft-24ft

Overall

22318

Females

9147

F18-39

9147

21M→35K

21.0 - 21.8 mi

Top 76%
×7stories
+17ft-86ft

Overall

21676

Females

8863

F18-39

8863

35K→23M

21.8 - 23.0 mi

Top 60%
×5stories
+23ft-63ft

Overall

17041

Females

6484

F18-39

6484

23M→24M

23.0 - 24.0 mi

Top 60%
×6stories
+12ft-82ft

Overall

17065

Females

6547

F18-39

6547

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

16394

Females

6271

F18-39

6271

40K→25.2M

24.9 - 25.2 mi

Top 51%
×1story
+13ft-16ft

Overall

14574

Females

5363

F18-39

5363

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2stories
+22ft-21ft

Overall

15884

Females

5973

F18-39

5973

Passing Analysis

Category:
Athletes Passed
2472
Passed By
680
Net Change
+1792
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23818
5K → 10K220273-53#23818#23871
10K → 15K26062+198#23871#23673
15K → 20K30444+260#23673#23413
20K → Half3134-3#23413#23416
Half → 25K22840+188#23416#23228
25K → 30K23394+139#23228#23089
30K → 20M79790#23089#23089
20M → 21M8938+51#23089#23038
21M → 35K5912+47#23038#22991
35K → 23M3021+301#22991#22690
23M → 24M2130+213#22690#22477
24M → 40K1731+172#22477#22305
40K → 25.2M822+80#22305#22225
25.2M → Finish1990+199#22225#22026
TOTALS2472680+1792
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing