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BOSTON MARATHON 2025

Julie Calboutin

Bib: 16535•F

MI

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F50-54)
#0 / 1303
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:20
Rank: #22928
Start → 5K
28:20 | 9:07/mi
10K· 6.21 mi
57:07
Rank: #23181 (-253)
5K → 10K
28:47 | 9:16/mi
15K· 9.32 mi
1:26:53
Rank: #23521 (-340)
10K → 15K
29:46 | 9:35/mi
20K· 12.43 mi
1:56:48
Rank: #23463 (+58)
15K → 20K
29:55 | 9:38/mi
Half· 13.11 mi
2:03:15
Rank: #23458 (+5)
20K → Half
6:27 | 9:27/mi
25K· 15.53 mi
2:27:12
Rank: #23343 (+115)
Half → 25K
23:57 | 9:53/mi
30K· 18.64 mi
3:02:03
Rank: #23578 (-235)
25K → 30K
34:51 | 11:13/mi
20M
3:16:35
Rank: #23515 (+63)
30K → 20M
14:32 | 10:42/mi
21M
3:27:55
Rank: #23438 (+77)
20M → 21M
11:20 | 11:20/mi
35K· 21.75 mi
3:36:20
Rank: #23492 (-54)
21M → 35K
8:25 | 11:15/mi
23M
3:50:16
Rank: #23498 (-6)
35K → 23M
13:56 | 11:08/mi
24M
4:01:50
Rank: #23602 (-104)
23M → 24M
11:34 | 11:34/mi
40K· 24.85 mi
4:11:25
Rank: #23620 (-18)
24M → 40K
9:35 | 11:13/mi
25.2M
4:15:50
Rank: #23648 (-28)
40K → 25.2M
4:25 | 12:48/mi
Finish· 26.22 mi
4:26:31
Rank: #23648
25.2M → Finish
10:41 | 10:29/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:03:15
Pace9:24 /mi
2nd Half
Distance13.11 mi
Time2:23:16
Pace10:56 /mi
📊Positive Split: 16.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:02:0428:209:0728:20
9:07
-
10K
6.21 mi11:30:5157:079:1228:47
9:16
+0:09
15K
9.32 mi12:00:371:26:539:1929:46
9:35
+0:19
20K
12.43 mi12:30:321:56:489:2429:55
9:38
+0:03
Half
13.11 mi12:36:592:03:159:246:27
9:27
-0:11
25K
15.53 mi13:00:562:27:129:2923:57
9:53
+0:26
30K
18.64 mi13:35:473:02:039:4634:51
11:13
+1:20
20M
20.00 mi13:50:193:16:359:5014:32
10:42
-0:31
21M
21.00 mi14:01:393:27:559:5411:20
11:20
+0:38
35K
21.75 mi14:10:043:36:209:578:25
11:15
-0:05
23M
23.00 mi14:24:003:50:1610:0113:56
11:08
-0:07
24M
24.00 mi14:35:344:01:5010:0511:34
11:34
+0:26
40K
24.85 mi14:45:094:11:2510:079:35
11:13
-0:21
25.2M
25.20 mi14:49:344:15:5010:094:25
12:48
+1:35
Finish
26.22 mi15:00:154:26:3110:1010:41
10:29
-2:19

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

9:07 /mi

Average Pace

10:10 /mi

Slowest Pace

12:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:27:12

55% of race

Time at Steady Pace

39:09

15% of race

Time at Slower Pace

1:20:10

30% of race

Average Pace: 10:10 /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 mi11:02:0428:209:0728:20
9:07
#22928
10K
6.21 mi11:30:5157:079:1228:47
9:16
#23181
15K
9.32 mi12:00:371:26:539:1929:46
9:35
#23521
20K
12.43 mi12:30:321:56:489:2429:55
9:38
#23463
Half
13.11 mi12:36:592:03:159:246:27
9:27
#23458
25K
15.53 mi13:00:562:27:129:2923:57
9:53
#23343
30K
18.64 mi13:35:473:02:039:4634:51
11:13
#23578
20M
20.00 mi13:50:193:16:359:5014:32
10:42
#23515
21M
21.00 mi14:01:393:27:559:5411:20
11:20
#23438
35K
21.75 mi14:10:043:36:209:578:25
11:15
#23492
23M
23.00 mi14:24:003:50:1610:0113:56
11:08
#23498
24M
24.00 mi14:35:344:01:5010:0511:34
11:34
#23602
40K
24.85 mi14:45:094:11:2510:079:35
11:13
#23620
25.2M
25.20 mi14:49:344:15:5010:094:25
12:48
#23648
Finish
26.22 mi15:00:154:26:3110:1010:41
10:29
#23648
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi229289132913223965(Top 84%)9646(Top 79%)9646(Top 740%)
10K6.21 mi3.10 mi23181-2539246-1149246-11423414(Top 82%)9363(Top 77%)9363(Top 719%)
15K9.32 mi3.11 mi23521-3409425-1799425-17923965(Top 84%)9646(Top 79%)9646(Top 740%)
20K12.43 mi3.11 mi23463+589381+449381+4423307(Top 82%)9309(Top 76%)9309(Top 714%)
Half13.11 mi0.68 mi23458+59375+69375+623461(Top 83%)9413(Top 77%)9413(Top 722%)
25K15.53 mi2.42 mi23343+1159323+529323+5222970(Top 81%)9177(Top 75%)9177(Top 704%)
30K18.64 mi3.11 mi23578-2359499-1769499-17624406(Top 86%)10079(Top 82%)10079(Top 774%)
20M20.00 mi1.36 mi23515+639484+159484+1522946(Top 81%)9394(Top 77%)9394(Top 721%)
21M21.00 mi1.00 mi23438+779469+159469+1522248(Top 78%)9109(Top 74%)9109(Top 699%)
35K21.75 mi0.75 mi23492-549509-409509-4024702(Top 87%)10426(Top 85%)10426(Top 800%)
23M23.00 mi1.25 mi23498-69525-169525-1623524(Top 83%)9860(Top 81%)9860(Top 757%)
24M24.00 mi1.00 mi23602-1049601-769601-7625012(Top 88%)10636(Top 87%)10636(Top 816%)
40K24.85 mi0.85 mi23620-189629-289629-2823593(Top 83%)9984(Top 82%)9984(Top 766%)
25.2M25.20 mi0.35 mi23648-289647-189647-1824774(Top 87%)10559(Top 86%)10559(Top 810%)
Finish26.22 mi1.02 mi236489664-179664-1724255(Top 85%)10291(Top 84%)10291(Top 790%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 84%
×21stories
+97ft-345ft

Overall

23965

Females

9646

F50-54

9646

5K→10K

3.1 - 6.2 mi

Top 82%
×5stories
+79ft-138ft

Overall

23414

Females

9363

F50-54

9363

10K→15K

6.2 - 9.3 mi

Top 84%
×3stories
+67ft-78ft

Overall

23965

Females

9646

F50-54

9646

15K→20K

9.3 - 12.4 mi

Top 82%
×5stories
+106ft-86ft

Overall

23307

Females

9309

F50-54

9309

20K→Half

12.4 - 13.1 mi

Top 83%
×2stories
+19ft-37ft

Overall

23461

Females

9413

F50-54

9413

Half→25K

13.1 - 15.5 mi

Top 81%
×4stories
+66ft-88ft

Overall

22970

Females

9177

F50-54

9177

25K→30K

15.5 - 18.6 mi

Top 86%
×9stories
+181ft-148ft

Overall

24406

Females

10079

F50-54

10079

30K→20M

18.6 - 20.0 mi

Top 81%
×5stories
+64ft-50ft

Overall

22946

Females

9394

F50-54

9394

20M→21M

20.0 - 21.0 mi

Top 78%
×8stories
+106ft-24ft

Overall

22248

Females

9109

F50-54

9109

21M→35K

21.0 - 21.8 mi

Top 87%
×7stories
+17ft-86ft

Overall

24702

Females

10426

F50-54

10426

35K→23M

21.8 - 23.0 mi

Top 83%
×5stories
+23ft-63ft

Overall

23524

Females

9860

F50-54

9860

23M→24M

23.0 - 24.0 mi

Top 88%
×6stories
+12ft-82ft

Overall

25012

Females

10636

F50-54

10636

24M→40K

24.0 - 24.9 mi

Top 83%
×1story
+6ft-20ft

Overall

23593

Females

9984

F50-54

9984

40K→25.2M

24.9 - 25.2 mi

Top 87%
×1story
+13ft-16ft

Overall

24774

Females

10559

F50-54

10559

25.2M→Finish

25.2 - 26.2 mi

Top 85%
×2stories
+22ft-21ft

Overall

24255

Females

10291

F50-54

10291

Passing Analysis

Category:
Athletes Passed
1123
Passed By
1843
Net Change
-720
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22928
5K → 10K134387-253#22928#23181
10K → 15K77417-340#23181#23521
15K → 20K174116+58#23521#23463
20K → Half3328+5#23463#23458
Half → 25K18772+115#23458#23343
25K → 30K80315-235#23343#23578
30K → 20M10744+63#23578#23515
20M → 21M11740+77#23515#23438
21M → 35K3084-54#23438#23492
35K → 23M7379-6#23492#23498
23M → 24M22126-104#23498#23602
24M → 40K3755-18#23602#23620
40K → 25.2M836-28#23620#23648
25.2M → Finish44440#23648#23648
TOTALS11231843-720
📊

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