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BOSTON MARATHON 2025

Caitlin Smith

Bib: 26748•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
29:59
Rank: #24700
Start → 5K
29:59 | 9:39/mi
10K· 6.21 mi
58:47
Rank: #24077 (+623)
5K → 10K
28:48 | 9:16/mi
15K· 9.32 mi
1:27:13
Rank: #23623 (+454)
10K → 15K
28:26 | 9:09/mi
20K· 12.43 mi
1:55:46
Rank: #23183 (+440)
15K → 20K
28:33 | 9:11/mi
Half· 13.11 mi
2:02:01
Rank: #23148 (+35)
20K → Half
6:15 | 9:10/mi
25K· 15.53 mi
2:25:48
Rank: #23077 (+71)
Half → 25K
23:47 | 9:49/mi
30K· 18.64 mi
2:56:56
Rank: #22777 (+300)
25K → 30K
31:08 | 10:01/mi
20M
3:11:32
Rank: #22797 (-20)
30K → 20M
14:36 | 10:45/mi
21M
3:22:46
Rank: #22744 (+53)
20M → 21M
11:14 | 11:14/mi
35K· 21.75 mi
3:30:04
Rank: #22665 (+79)
21M → 35K
7:18 | 9:45/mi
23M
3:44:18
Rank: #22768 (-103)
35K → 23M
14:14 | 11:22/mi
24M
3:54:51
Rank: #22744 (+24)
23M → 24M
10:33 | 10:33/mi
40K· 24.85 mi
4:05:47
Rank: #22952 (-208)
24M → 40K
10:56 | 12:47/mi
25.2M
4:10:06
Rank: #22995 (-43)
40K → 25.2M
4:19 | 12:31/mi
Finish· 26.22 mi
4:20:15
Rank: #22987 (+8)
25.2M → Finish
10:09 | 9:58/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:02:01
Pace9:18 /mi
2nd Half
Distance13.11 mi
Time2:18:14
Pace10:33 /mi
📊Positive Split: 13.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:4929:599:3929:59
9:39
-
10K
6.21 mi12:14:3758:479:2828:48
9:16
-0:23
15K
9.32 mi12:43:031:27:139:2128:26
9:09
-0:07
20K
12.43 mi13:11:361:55:469:1928:33
9:11
+0:02
Half
13.11 mi13:17:512:02:019:186:15
9:10
-0:01
25K
15.53 mi13:41:382:25:489:2323:47
9:49
+0:39
30K
18.64 mi14:12:462:56:569:2931:08
10:01
+0:12
20M
20.00 mi14:27:223:11:329:3514:36
10:45
+0:44
21M
21.00 mi14:38:363:22:469:3911:14
11:14
+0:29
35K
21.75 mi14:45:543:30:049:407:18
9:45
-1:29
23M
23.00 mi15:00:083:44:189:4514:14
11:22
+1:37
24M
24.00 mi15:10:413:54:519:4710:33
10:33
-0:49
40K
24.85 mi15:21:374:05:479:5310:56
12:47
+2:14
25.2M
25.20 mi15:25:564:10:069:554:19
12:31
-0:16
Finish
26.22 mi15:36:054:20:159:5610:09
9:58
-2:33

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

9:09 /mi

Average Pace

9:56 /mi

Slowest Pace

12:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:32:02

35% of race

Time at Steady Pace

1:42:21

39% of race

Time at Slower Pace

1:05:52

25% of race

Average Pace: 9:56 /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 mi11:45:4929:599:3929:59
9:39
#24700
10K
6.21 mi12:14:3758:479:2828:48
9:16
#24077
15K
9.32 mi12:43:031:27:139:2128:26
9:09
#23623
20K
12.43 mi13:11:361:55:469:1928:33
9:11
#23183
Half
13.11 mi13:17:512:02:019:186:15
9:10
#23148
25K
15.53 mi13:41:382:25:489:2323:47
9:49
#23077
30K
18.64 mi14:12:462:56:569:2931:08
10:01
#22777
20M
20.00 mi14:27:223:11:329:3514:36
10:45
#22797
21M
21.00 mi14:38:363:22:469:3911:14
11:14
#22744
35K
21.75 mi14:45:543:30:049:407:18
9:45
#22665
23M
23.00 mi15:00:083:44:189:4514:14
11:22
#22768
24M
24.00 mi15:10:413:54:519:4710:33
10:33
#22744
40K
24.85 mi15:21:374:05:479:5310:56
12:47
#22952
25.2M
25.20 mi15:25:564:10:069:554:19
12:31
#22995
Finish
26.22 mi15:36:054:20:159:5610:09
9:58
#22987
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi24700100581005822678(Top 80%)8937(Top 73%)8937(Top 163%)
10K6.21 mi3.10 mi24077+6239727+3319727+33123432(Top 82%)9374(Top 77%)9374(Top 171%)
15K9.32 mi3.11 mi23623+4549469+2589469+25822678(Top 80%)8937(Top 73%)8937(Top 163%)
20K12.43 mi3.11 mi23183+4409226+2439226+24321864(Top 77%)8518(Top 70%)8518(Top 156%)
Half13.11 mi0.68 mi23148+359208+189208+1822498(Top 79%)8889(Top 73%)8889(Top 163%)
25K15.53 mi2.42 mi23077+719184+249184+2422795(Top 80%)9083(Top 74%)9083(Top 166%)
30K18.64 mi3.11 mi22777+3009057+1279057+12721665(Top 76%)8597(Top 70%)8597(Top 157%)
20M20.00 mi1.36 mi22797-209100-439100-4323065(Top 81%)9455(Top 77%)9455(Top 173%)
21M21.00 mi1.00 mi22744+539086+149086+1422013(Top 77%)8977(Top 73%)8977(Top 164%)
35K21.75 mi0.75 mi22665+799053+339053+3321232(Top 75%)8640(Top 71%)8640(Top 158%)
23M23.00 mi1.25 mi22768-1039138-859138-8524030(Top 85%)10114(Top 83%)10114(Top 185%)
24M24.00 mi1.00 mi22744+249141-39141-322962(Top 81%)9616(Top 79%)9616(Top 176%)
40K24.85 mi0.85 mi22952-2089285-1449285-14426062(Top 92%)11169(Top 91%)11169(Top 204%)
25.2M25.20 mi0.35 mi22995-439307-229307-2224260(Top 85%)10288(Top 84%)10288(Top 188%)
Finish26.22 mi1.02 mi22987+89312-59312-522825(Top 80%)9583(Top 78%)9583(Top 175%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21stories
+97ft-345ft

Overall

22678

Females

8937

F18-39

8937

5K→10K

3.1 - 6.2 mi

Top 82%
×5stories
+79ft-138ft

Overall

23432

Females

9374

F18-39

9374

10K→15K

6.2 - 9.3 mi

Top 80%
×3stories
+67ft-78ft

Overall

22678

Females

8937

F18-39

8937

15K→20K

9.3 - 12.4 mi

Top 77%
×5stories
+106ft-86ft

Overall

21864

Females

8518

F18-39

8518

20K→Half

12.4 - 13.1 mi

Top 79%
×2stories
+19ft-37ft

Overall

22498

Females

8889

F18-39

8889

Half→25K

13.1 - 15.5 mi

Top 80%
×4stories
+66ft-88ft

Overall

22795

Females

9083

F18-39

9083

25K→30K

15.5 - 18.6 mi

Top 76%
×9stories
+181ft-148ft

Overall

21665

Females

8597

F18-39

8597

30K→20M

18.6 - 20.0 mi

Top 81%
×5stories
+64ft-50ft

Overall

23065

Females

9455

F18-39

9455

20M→21M

20.0 - 21.0 mi

Top 77%
×8stories
+106ft-24ft

Overall

22013

Females

8977

F18-39

8977

21M→35K

21.0 - 21.8 mi

Top 75%
×7stories
+17ft-86ft

Overall

21232

Females

8640

F18-39

8640

35K→23M

21.8 - 23.0 mi

Top 85%
×5stories
+23ft-63ft

Overall

24030

Females

10114

F18-39

10114

23M→24M

23.0 - 24.0 mi

Top 81%
×6stories
+12ft-82ft

Overall

22962

Females

9616

F18-39

9616

24M→40K

24.0 - 24.9 mi

Top 92%
×1story
+6ft-20ft

Overall

26062

Females

11169

F18-39

11169

40K→25.2M

24.9 - 25.2 mi

Top 85%
×1story
+13ft-16ft

Overall

24260

Females

10288

F18-39

10288

25.2M→Finish

25.2 - 26.2 mi

Top 80%
×2stories
+22ft-21ft

Overall

22825

Females

9583

F18-39

9583

Passing Analysis

Category:
Athletes Passed
2534
Passed By
821
Net Change
+1713
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24700
5K → 10K65431+623#24700#24077
10K → 15K46511+454#24077#23623
15K → 20K45212+440#23623#23183
20K → Half4510+35#23183#23148
Half → 25K16291+71#23148#23077
25K → 30K33333+300#23077#22777
30K → 20M7696-20#22777#22797
20M → 21M8936+53#22797#22744
21M → 35K9011+79#22744#22665
35K → 23M44147-103#22665#22768
23M → 24M5935+24#22768#22744
24M → 40K14222-208#22744#22952
40K → 25.2M851-43#22952#22995
25.2M → Finish4335+8#22995#22987
TOTALS2534821+1713
📊

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