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BOSTON MARATHON 2025

Clarissa Whiting

Bib: 5873•F

CO

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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
24:31
Rank: #15621
Start → 5K
24:31 | 7:53/mi
10K· 6.21 mi
49:30
Rank: #16240 (-619)
5K → 10K
24:59 | 8:02/mi
15K· 9.32 mi
1:16:06
Rank: #17533 (-1293)
10K → 15K
26:36 | 8:34/mi
20K· 12.43 mi
1:47:03
Rank: #19949 (-2416)
15K → 20K
30:57 | 9:58/mi
Half· 13.11 mi
1:52:49
Rank: #19897 (+52)
20K → Half
5:46 | 8:27/mi
25K· 15.53 mi
2:17:53
Rank: #20979 (-1082)
Half → 25K
25:04 | 10:20/mi
30K· 18.64 mi
2:48:04
Rank: #20944 (+35)
25K → 30K
30:11 | 9:43/mi
20M
3:00:27
Rank: #20653 (+291)
30K → 20M
12:23 | 9:07/mi
21M
3:11:37
Rank: #20749 (-96)
20M → 21M
11:10 | 11:10/mi
35K· 21.75 mi
3:18:34
Rank: #20709 (+40)
21M → 35K
6:57 | 9:17/mi
23M
3:33:33
Rank: #21156 (-447)
35K → 23M
14:59 | 11:58/mi
24M
3:42:07
Rank: #20950 (+206)
23M → 24M
8:34 | 8:34/mi
40K· 24.85 mi
3:49:39
Rank: #20776 (+174)
24M → 40K
7:32 | 8:49/mi
25.2M
3:52:56
Rank: #20701 (+75)
40K → 25.2M
3:17 | 9:31/mi
Finish· 26.22 mi
4:01:29
Rank: #20566 (+135)
25.2M → Finish
8:33 | 8:23/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:49
Pace8:36 /mi
2nd Half
Distance13.11 mi
Time2:08:40
Pace9:49 /mi
📊Positive Split: 14.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:58:3324:317:5324:31
7:53
-
10K
6.21 mi11:23:3249:307:5824:59
8:02
+0:09
15K
9.32 mi11:50:081:16:068:1026:36
8:34
+0:32
20K
12.43 mi12:21:051:47:038:3730:57
9:58
+1:24
Half
13.11 mi12:26:511:52:498:365:46
8:27
-1:31
25K
15.53 mi12:51:552:17:538:5325:04
10:20
+1:53
30K
18.64 mi13:22:062:48:049:0130:11
9:43
-0:37
20M
20.00 mi13:34:293:00:279:0112:23
9:07
-0:36
21M
21.00 mi13:45:393:11:379:0711:10
11:10
+2:03
35K
21.75 mi13:52:363:18:349:086:57
9:17
-1:53
23M
23.00 mi14:07:353:33:339:1714:59
11:58
+2:41
24M
24.00 mi14:16:093:42:079:158:34
8:34
-3:24
40K
24.85 mi14:23:413:49:399:147:32
8:49
+0:15
25.2M
25.20 mi14:26:583:52:569:153:17
9:31
+0:42
Finish
26.22 mi14:35:314:01:299:138:33
8:23
-1:08

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

7:53 /mi

Average Pace

9:13 /mi

Slowest Pace

11:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:03:49

26% of race

Time at Steady Pace

1:05:19

27% of race

Time at Slower Pace

1:52:21

47% of race

Average Pace: 9:13 /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 mi10:58:3324:317:5324:31
7:53
#15621
10K
6.21 mi11:23:3249:307:5824:59
8:02
#16240
15K
9.32 mi11:50:081:16:068:1026:36
8:34
#17533
20K
12.43 mi12:21:051:47:038:3730:57
9:58
#19949
Half
13.11 mi12:26:511:52:498:365:46
8:27
#19897
25K
15.53 mi12:51:552:17:538:5325:04
10:20
#20979
30K
18.64 mi13:22:062:48:049:0130:11
9:43
#20944
20M
20.00 mi13:34:293:00:279:0112:23
9:07
#20653
21M
21.00 mi13:45:393:11:379:0711:10
11:10
#20749
35K
21.75 mi13:52:363:18:349:086:57
9:17
#20709
23M
23.00 mi14:07:353:33:339:1714:59
11:58
#21156
24M
24.00 mi14:16:093:42:079:158:34
8:34
#20950
40K
24.85 mi14:23:413:49:399:147:32
8:49
#20776
25.2M
25.20 mi14:26:583:52:569:153:17
9:31
#20701
Finish
26.22 mi14:35:314:01:299:138:33
8:23
#20566
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi156214912491219717(Top 69%)7287(Top 60%)7287(Top 133%)
10K6.21 mi3.10 mi16240-6195293-3815293-38116798(Top 59%)5593(Top 46%)5593(Top 102%)
15K9.32 mi3.11 mi17533-12936033-7406033-74019717(Top 69%)7287(Top 60%)7287(Top 133%)
20K12.43 mi3.11 mi19949-24167444-14117444-141124150(Top 85%)9796(Top 80%)9796(Top 179%)
Half13.11 mi0.68 mi19897+527414+307414+3018976(Top 67%)6899(Top 56%)6899(Top 126%)
25K15.53 mi2.42 mi20979-10828024-6108024-61024044(Top 85%)9762(Top 80%)9762(Top 178%)
30K18.64 mi3.11 mi20944+358059-358059-3520742(Top 73%)8078(Top 66%)8078(Top 148%)
20M20.00 mi1.36 mi20653+2917919+1407919+14017405(Top 61%)6378(Top 52%)6378(Top 117%)
21M21.00 mi1.00 mi20749-967983-647983-6421815(Top 77%)8872(Top 73%)8872(Top 162%)
35K21.75 mi0.75 mi20709+407977+67977+619557(Top 69%)7749(Top 63%)7749(Top 142%)
23M23.00 mi1.25 mi21156-4478246-2698246-26925075(Top 88%)10641(Top 87%)10641(Top 195%)
24M24.00 mi1.00 mi20950+2068149+978149+9714992(Top 53%)5387(Top 44%)5387(Top 99%)
40K24.85 mi0.85 mi20776+1748074+758074+7515304(Top 54%)5706(Top 47%)5706(Top 104%)
25.2M25.20 mi0.35 mi20701+758037+378037+3714812(Top 52%)5482(Top 45%)5482(Top 100%)
Finish26.22 mi1.02 mi20566+1357977+607977+6015562(Top 55%)5802(Top 47%)5802(Top 106%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21stories
+97ft-345ft

Overall

19717

Females

7287

F18-39

7287

5K→10K

3.1 - 6.2 mi

Top 59%
×5stories
+79ft-138ft

Overall

16798

Females

5593

F18-39

5593

10K→15K

6.2 - 9.3 mi

Top 69%
×3stories
+67ft-78ft

Overall

19717

Females

7287

F18-39

7287

15K→20K

9.3 - 12.4 mi

Top 85%
×5stories
+106ft-86ft

Overall

24150

Females

9796

F18-39

9796

20K→Half

12.4 - 13.1 mi

Top 67%
×2stories
+19ft-37ft

Overall

18976

Females

6899

F18-39

6899

Half→25K

13.1 - 15.5 mi

Top 85%
×4stories
+66ft-88ft

Overall

24044

Females

9762

F18-39

9762

25K→30K

15.5 - 18.6 mi

Top 73%
×9stories
+181ft-148ft

Overall

20742

Females

8078

F18-39

8078

30K→20M

18.6 - 20.0 mi

Top 61%
×5stories
+64ft-50ft

Overall

17405

Females

6378

F18-39

6378

20M→21M

20.0 - 21.0 mi

Top 77%
×8stories
+106ft-24ft

Overall

21815

Females

8872

F18-39

8872

21M→35K

21.0 - 21.8 mi

Top 69%
×7stories
+17ft-86ft

Overall

19557

Females

7749

F18-39

7749

35K→23M

21.8 - 23.0 mi

Top 88%
×5stories
+23ft-63ft

Overall

25075

Females

10641

F18-39

10641

23M→24M

23.0 - 24.0 mi

Top 53%
×6stories
+12ft-82ft

Overall

14992

Females

5387

F18-39

5387

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

15304

Females

5706

F18-39

5706

40K→25.2M

24.9 - 25.2 mi

Top 52%
×1story
+13ft-16ft

Overall

14812

Females

5482

F18-39

5482

25.2M→Finish

25.2 - 26.2 mi

Top 55%
×2stories
+22ft-21ft

Overall

15562

Females

5802

F18-39

5802

Passing Analysis

Category:
Athletes Passed
1525
Passed By
6470
Net Change
-4945
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15621
5K → 10K125744-619#15621#16240
10K → 15K301323-1293#16240#17533
15K → 20K52421-2416#17533#19949
20K → Half6210+52#19949#19897
Half → 25K201102-1082#19897#20979
25K → 30K226191+35#20979#20944
30K → 20M2998+291#20944#20653
20M → 21M60156-96#20653#20749
21M → 35K7737+40#20749#20709
35K → 23M24471-447#20709#21156
23M → 24M2082+206#21156#20950
24M → 40K1762+174#20950#20776
40K → 25.2M750+75#20776#20701
25.2M → Finish1383+135#20701#20566
TOTALS15256470-4945
📊

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