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BOSTON MARATHON 2025

Carolyn Rock

Bib: 24401•F

TN

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 46%
Division (F60-64)
#0 / 624
Top 12%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:22
Rank: #19818
Start → 5K
26:22 | 8:29/mi
10K· 6.21 mi
52:52
Rank: #19893 (-75)
5K → 10K
26:30 | 8:32/mi
15K· 9.32 mi
1:19:49
Rank: #20046 (-153)
10K → 15K
26:57 | 8:40/mi
20K· 12.43 mi
1:46:45
Rank: #19829 (+217)
15K → 20K
26:56 | 8:40/mi
Half· 13.11 mi
1:52:37
Rank: #19821 (+8)
20K → Half
5:52 | 8:36/mi
25K· 15.53 mi
2:14:12
Rank: #19731 (+90)
Half → 25K
21:35 | 8:54/mi
30K· 18.64 mi
2:42:07
Rank: #19314 (+417)
25K → 30K
27:55 | 8:59/mi
20M
2:54:18
Rank: #19101 (+213)
30K → 20M
12:11 | 8:58/mi
21M
3:03:50
Rank: #18928 (+173)
20M → 21M
9:32 | 9:32/mi
35K· 21.75 mi
3:10:11
Rank: #18807 (+121)
21M → 35K
6:21 | 8:29/mi
23M
3:21:29
Rank: #18644 (+163)
35K → 23M
11:18 | 9:02/mi
24M
3:30:12
Rank: #18517 (+127)
23M → 24M
8:43 | 8:43/mi
40K· 24.85 mi
3:37:49
Rank: #18393 (+124)
24M → 40K
7:37 | 8:54/mi
25.2M
3:41:13
Rank: #18369 (+24)
40K → 25.2M
3:24 | 9:52/mi
Finish· 26.22 mi
3:50:09
Rank: #18348 (+21)
25.2M → Finish
8:56 | 8:46/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:37
Pace8:35 /mi
2nd Half
Distance13.11 mi
Time1:57:32
Pace8:58 /mi
📊Positive Split: 4.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:3426:228:2926:22
8:29
-
10K
6.21 mi11:51:0452:528:3026:30
8:32
+0:03
15K
9.32 mi12:18:011:19:498:3426:57
8:40
+0:08
20K
12.43 mi12:44:571:46:458:3526:56
8:40
0:00
Half
13.11 mi12:50:491:52:378:355:52
8:36
-0:04
25K
15.53 mi13:12:242:14:128:3821:35
8:54
+0:18
30K
18.64 mi13:40:192:42:078:4227:55
8:59
+0:05
20M
20.00 mi13:52:302:54:188:4312:11
8:58
-0:01
21M
21.00 mi14:02:023:03:508:459:32
9:32
+0:34
35K
21.75 mi14:08:233:10:118:456:21
8:29
-1:03
23M
23.00 mi14:19:413:21:298:4611:18
9:02
+0:33
24M
24.00 mi14:28:243:30:128:468:43
8:43
-0:19
40K
24.85 mi14:36:013:37:498:467:37
8:54
+0:11
25.2M
25.20 mi14:39:253:41:138:473:24
9:52
+0:58
Finish
26.22 mi14:48:213:50:098:478:56
8:46
-1:06

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

8:29 /mi

Average Pace

8:47 /mi

Slowest Pace

9:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:37:13

94% of race

Time at Steady Pace

12:56

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:47 /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 mi11:24:3426:228:2926:22
8:29
#19818
10K
6.21 mi11:51:0452:528:3026:30
8:32
#19893
15K
9.32 mi12:18:011:19:498:3426:57
8:40
#20046
20K
12.43 mi12:44:571:46:458:3526:56
8:40
#19829
Half
13.11 mi12:50:491:52:378:355:52
8:36
#19821
25K
15.53 mi13:12:242:14:128:3821:35
8:54
#19731
30K
18.64 mi13:40:192:42:078:4227:55
8:59
#19314
20M
20.00 mi13:52:302:54:188:4312:11
8:58
#19101
21M
21.00 mi14:02:023:03:508:459:32
9:32
#18928
35K
21.75 mi14:08:233:10:118:456:21
8:29
#18807
23M
23.00 mi14:19:413:21:298:4611:18
9:02
#18644
24M
24.00 mi14:28:243:30:128:468:43
8:43
#18517
40K
24.85 mi14:36:013:37:498:467:37
8:54
#18393
25.2M
25.20 mi14:39:253:41:138:473:24
9:52
#18369
Finish
26.22 mi14:48:213:50:098:478:56
8:46
#18348
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi198187401740120329(Top 72%)7612(Top 62%)7612(Top 1220%)
10K6.21 mi3.10 mi19893-757407-67407-619977(Top 70%)7449(Top 61%)7449(Top 1194%)
15K9.32 mi3.11 mi20046-1537490-837490-8320329(Top 72%)7612(Top 62%)7612(Top 1220%)
20K12.43 mi3.11 mi19829+2177380+1107380+11019260(Top 68%)7056(Top 58%)7056(Top 1131%)
Half13.11 mi0.68 mi19821+87375+57375+519827(Top 70%)7365(Top 60%)7365(Top 1180%)
25K15.53 mi2.42 mi19731+907329+467329+4619447(Top 68%)7224(Top 59%)7224(Top 1158%)
30K18.64 mi3.11 mi19314+4177139+1907139+19017629(Top 62%)6376(Top 52%)6376(Top 1022%)
20M20.00 mi1.36 mi19101+2137036+1037036+10316642(Top 59%)5950(Top 49%)5950(Top 954%)
21M21.00 mi1.00 mi18928+1736965+716965+7116254(Top 57%)5850(Top 48%)5850(Top 938%)
35K21.75 mi0.75 mi18807+1216911+546911+5415455(Top 54%)5511(Top 45%)5511(Top 883%)
23M23.00 mi1.25 mi18644+1636848+636848+6316433(Top 58%)6138(Top 50%)6138(Top 984%)
24M24.00 mi1.00 mi18517+1276803+456803+4515876(Top 56%)5866(Top 48%)5866(Top 940%)
40K24.85 mi0.85 mi18393+1246764+396764+3915836(Top 56%)5965(Top 49%)5965(Top 956%)
25.2M25.20 mi0.35 mi18369+246760+46760+416453(Top 58%)6314(Top 52%)6314(Top 1012%)
Finish26.22 mi1.02 mi18348+216772-126772-1217887(Top 63%)7022(Top 57%)7022(Top 1125%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21stories
+97ft-345ft

Overall

20329

Females

7612

F60-64

7612

5K→10K

3.1 - 6.2 mi

Top 70%
×5stories
+79ft-138ft

Overall

19977

Females

7449

F60-64

7449

10K→15K

6.2 - 9.3 mi

Top 72%
×3stories
+67ft-78ft

Overall

20329

Females

7612

F60-64

7612

15K→20K

9.3 - 12.4 mi

Top 68%
×5stories
+106ft-86ft

Overall

19260

Females

7056

F60-64

7056

20K→Half

12.4 - 13.1 mi

Top 70%
×2stories
+19ft-37ft

Overall

19827

Females

7365

F60-64

7365

Half→25K

13.1 - 15.5 mi

Top 68%
×4stories
+66ft-88ft

Overall

19447

Females

7224

F60-64

7224

25K→30K

15.5 - 18.6 mi

Top 62%
×9stories
+181ft-148ft

Overall

17629

Females

6376

F60-64

6376

30K→20M

18.6 - 20.0 mi

Top 59%
×5stories
+64ft-50ft

Overall

16642

Females

5950

F60-64

5950

20M→21M

20.0 - 21.0 mi

Top 57%
×8stories
+106ft-24ft

Overall

16254

Females

5850

F60-64

5850

21M→35K

21.0 - 21.8 mi

Top 54%
×7stories
+17ft-86ft

Overall

15455

Females

5511

F60-64

5511

35K→23M

21.8 - 23.0 mi

Top 58%
×5stories
+23ft-63ft

Overall

16433

Females

6138

F60-64

6138

23M→24M

23.0 - 24.0 mi

Top 56%
×6stories
+12ft-82ft

Overall

15876

Females

5866

F60-64

5866

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

15836

Females

5965

F60-64

5965

40K→25.2M

24.9 - 25.2 mi

Top 58%
×1story
+13ft-16ft

Overall

16453

Females

6314

F60-64

6314

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2stories
+22ft-21ft

Overall

17887

Females

7022

F60-64

7022

Passing Analysis

Category:
Athletes Passed
2475
Passed By
1005
Net Change
+1470
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19818
5K → 10K234309-75#19818#19893
10K → 15K136289-153#19893#20046
15K → 20K29376+217#20046#19829
20K → Half3729+8#19829#19821
Half → 25K195105+90#19821#19731
25K → 30K46043+417#19731#19314
30K → 20M23017+213#19314#19101
20M → 21M19320+173#19101#18928
21M → 35K1276+121#18928#18807
35K → 23M18825+163#18807#18644
23M → 24M13912+127#18644#18517
24M → 40K14218+124#18517#18393
40K → 25.2M3410+24#18393#18369
25.2M → Finish6746+21#18369#18348
TOTALS24751005+1470
📊

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