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BOSTON MARATHON 2025

Claire Johnson

Bib: 12796•F

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 50%
Gender (Female)
#0 / 12228
Top 36%
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
22:54
Rank: #11075
Start → 5K
22:54 | 7:22/mi
10K· 6.21 mi
46:12
Rank: #11583 (-508)
5K → 10K
23:18 | 7:30/mi
15K· 9.32 mi
1:10:04
Rank: #12148 (-565)
10K → 15K
23:52 | 7:41/mi
20K· 12.43 mi
1:34:47
Rank: #12726 (-578)
15K → 20K
24:43 | 7:57/mi
Half· 13.11 mi
1:40:09
Rank: #12837 (-111)
20K → Half
5:22 | 7:52/mi
25K· 15.53 mi
2:00:10
Rank: #13313 (-476)
Half → 25K
20:01 | 8:15/mi
30K· 18.64 mi
2:26:59
Rank: #13765 (-452)
25K → 30K
26:49 | 8:38/mi
20M
2:38:50
Rank: #13845 (-80)
30K → 20M
11:51 | 8:43/mi
21M
2:48:12
Rank: #13930 (-85)
20M → 21M
9:22 | 9:22/mi
35K· 21.75 mi
2:54:25
Rank: #13925 (+5)
21M → 35K
6:13 | 8:19/mi
23M
3:05:14
Rank: #13960 (-35)
35K → 23M
10:49 | 8:38/mi
24M
3:13:39
Rank: #13964 (-4)
23M → 24M
8:25 | 8:25/mi
40K· 24.85 mi
3:21:04
Rank: #13962 (+2)
24M → 40K
7:25 | 8:40/mi
25.2M
3:24:20
Rank: #13961 (+1)
40K → 25.2M
3:16 | 9:28/mi
Finish· 26.22 mi
3:33:14
Rank: #14103 (-142)
25.2M → Finish
8:54 | 8:44/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:09
Pace7:38 /mi
2nd Half
Distance13.11 mi
Time1:53:05
Pace8:38 /mi
📊Positive Split: 12.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:4922:547:2222:54
7:22
-
10K
6.21 mi11:14:0746:127:2623:18
7:30
+0:08
15K
9.32 mi11:37:591:10:047:3123:52
7:41
+0:11
20K
12.43 mi12:02:421:34:477:3824:43
7:57
+0:16
Half
13.11 mi12:08:041:40:097:385:22
7:52
-0:05
25K
15.53 mi12:28:052:00:107:4420:01
8:15
+0:23
30K
18.64 mi12:54:542:26:597:5326:49
8:38
+0:23
20M
20.00 mi13:06:452:38:507:5611:51
8:43
+0:05
21M
21.00 mi13:16:072:48:128:019:22
9:22
+0:39
35K
21.75 mi13:22:202:54:258:016:13
8:19
-1:03
23M
23.00 mi13:33:093:05:148:0310:49
8:38
+0:19
24M
24.00 mi13:41:343:13:398:048:25
8:25
-0:13
40K
24.85 mi13:48:593:21:048:057:25
8:40
+0:15
25.2M
25.20 mi13:52:153:24:208:073:16
9:28
+0:48
Finish
26.22 mi14:01:093:33:148:088:54
8:44
-0:44

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

7:22 /mi

Average Pace

8:08 /mi

Slowest Pace

9:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:40:09

47% of race

Time at Steady Pace

1:19:42

37% of race

Time at Slower Pace

33:23

16% of race

Average Pace: 8:08 /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 mi10:50:4922:547:2222:54
7:22
#11075
10K
6.21 mi11:14:0746:127:2623:18
7:30
#11583
15K
9.32 mi11:37:591:10:047:3123:52
7:41
#12148
20K
12.43 mi12:02:421:34:477:3824:43
7:57
#12726
Half
13.11 mi12:08:041:40:097:385:22
7:52
#12837
25K
15.53 mi12:28:052:00:107:4420:01
8:15
#13313
30K
18.64 mi12:54:542:26:597:5326:49
8:38
#13765
20M
20.00 mi13:06:452:38:507:5611:51
8:43
#13845
21M
21.00 mi13:16:072:48:128:019:22
9:22
#13930
35K
21.75 mi13:22:202:54:258:016:13
8:19
#13925
23M
23.00 mi13:33:093:05:148:0310:49
8:38
#13960
24M
24.00 mi13:41:343:13:398:048:25
8:25
#13964
40K
24.85 mi13:48:593:21:048:057:25
8:40
#13962
25.2M
25.20 mi13:52:153:24:208:073:16
9:28
#13961
Finish
26.22 mi14:01:093:33:148:088:54
8:44
#14103
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi110752327232713342(Top 47%)3652(Top 30%)3652(Top 67%)
10K6.21 mi3.10 mi11583-5082595-2682595-26812111(Top 43%)2882(Top 24%)2882(Top 53%)
15K9.32 mi3.11 mi12148-5652917-3222917-32213342(Top 47%)3652(Top 30%)3652(Top 67%)
20K12.43 mi3.11 mi12726-5783288-3713288-37114587(Top 51%)4420(Top 36%)4420(Top 81%)
Half13.11 mi0.68 mi12837-1113359-713359-7114853(Top 52%)4531(Top 37%)4531(Top 83%)
25K15.53 mi2.42 mi13313-4763660-3013660-30115646(Top 55%)5094(Top 42%)5094(Top 93%)
30K18.64 mi3.11 mi13765-4523973-3133973-31315575(Top 55%)5214(Top 43%)5214(Top 95%)
20M20.00 mi1.36 mi13845-804054-814054-8115196(Top 53%)5146(Top 42%)5146(Top 94%)
21M21.00 mi1.00 mi13930-854130-764130-7615476(Top 54%)5434(Top 44%)5434(Top 99%)
35K21.75 mi0.75 mi13925+54146-164146-1614325(Top 50%)4856(Top 40%)4856(Top 89%)
23M23.00 mi1.25 mi13960-354202-564202-5614196(Top 50%)4899(Top 40%)4899(Top 90%)
24M24.00 mi1.00 mi13964-44242-404242-4014010(Top 49%)4829(Top 39%)4829(Top 88%)
40K24.85 mi0.85 mi13962+24267-254267-2514483(Top 51%)5228(Top 43%)5228(Top 96%)
25.2M25.20 mi0.35 mi13961+14270-34270-314472(Top 51%)5261(Top 43%)5261(Top 96%)
Finish26.22 mi1.02 mi14103-1424371-1014371-10117681(Top 62%)6906(Top 56%)6906(Top 126%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
×21stories
+97ft-345ft

Overall

13342

Females

3652

F18-39

3652

5K→10K

3.1 - 6.2 mi

Top 43%
×5stories
+79ft-138ft

Overall

12111

Females

2882

F18-39

2882

10K→15K

6.2 - 9.3 mi

Top 47%
×3stories
+67ft-78ft

Overall

13342

Females

3652

F18-39

3652

15K→20K

9.3 - 12.4 mi

Top 51%
×5stories
+106ft-86ft

Overall

14587

Females

4420

F18-39

4420

20K→Half

12.4 - 13.1 mi

Top 52%
×2stories
+19ft-37ft

Overall

14853

Females

4531

F18-39

4531

Half→25K

13.1 - 15.5 mi

Top 55%
×4stories
+66ft-88ft

Overall

15646

Females

5094

F18-39

5094

25K→30K

15.5 - 18.6 mi

Top 55%
×9stories
+181ft-148ft

Overall

15575

Females

5214

F18-39

5214

30K→20M

18.6 - 20.0 mi

Top 53%
×5stories
+64ft-50ft

Overall

15196

Females

5146

F18-39

5146

20M→21M

20.0 - 21.0 mi

Top 54%
×8stories
+106ft-24ft

Overall

15476

Females

5434

F18-39

5434

21M→35K

21.0 - 21.8 mi

Top 50%
×7stories
+17ft-86ft

Overall

14325

Females

4856

F18-39

4856

35K→23M

21.8 - 23.0 mi

Top 50%
×5stories
+23ft-63ft

Overall

14196

Females

4899

F18-39

4899

23M→24M

23.0 - 24.0 mi

Top 49%
×6stories
+12ft-82ft

Overall

14010

Females

4829

F18-39

4829

24M→40K

24.0 - 24.9 mi

Top 51%
×1story
+6ft-20ft

Overall

14483

Females

5228

F18-39

5228

40K→25.2M

24.9 - 25.2 mi

Top 51%
×1story
+13ft-16ft

Overall

14472

Females

5261

F18-39

5261

25.2M→Finish

25.2 - 26.2 mi

Top 62%
×2stories
+22ft-21ft

Overall

17681

Females

6906

F18-39

6906

Passing Analysis

Category:
Athletes Passed
1016
Passed By
4044
Net Change
-3028
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11075
5K → 10K93601-508#11075#11583
10K → 15K58623-565#11583#12148
15K → 20K68646-578#12148#12726
20K → Half8119-111#12726#12837
Half → 25K73549-476#12837#13313
25K → 30K135587-452#13313#13765
30K → 20M94174-80#13765#13845
20M → 21M78163-85#13845#13930
21M → 35K6459+5#13930#13925
35K → 23M103138-35#13925#13960
23M → 24M8488-4#13960#13964
24M → 40K8179+2#13964#13962
40K → 25.2M4140+1#13962#13961
25.2M → Finish36178-142#13961#14103
TOTALS10164044-3028
📊

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