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BOSTON MARATHON 2025

Brittany Debord

Bib: 10583•F

NJ

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 33%
Gender (Female)
#0 / 12228
Top 16%
Division (F18-39)
#0 / 5469
Top 28%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:56
Rank: #11150
Start → 5K
22:56 | 7:23/mi
10K· 6.21 mi
46:10
Rank: #11514 (-364)
5K → 10K
23:14 | 7:29/mi
15K· 9.32 mi
1:09:22
Rank: #11473 (+41)
10K → 15K
23:12 | 7:28/mi
20K· 12.43 mi
1:32:38
Rank: #11263 (+210)
15K → 20K
23:16 | 7:29/mi
Half· 13.11 mi
1:37:39
Rank: #11215 (+48)
20K → Half
5:01 | 7:21/mi
25K· 15.53 mi
1:55:44
Rank: #10898 (+317)
Half → 25K
18:05 | 7:27/mi
30K· 18.64 mi
2:19:36
Rank: #10485 (+413)
25K → 30K
23:52 | 7:41/mi
20M
2:30:10
Rank: #10324 (+161)
30K → 20M
10:34 | 7:47/mi
21M
2:38:11
Rank: #10110 (+214)
20M → 21M
8:01 | 8:01/mi
35K· 21.75 mi
2:43:47
Rank: #10009 (+101)
21M → 35K
5:36 | 7:29/mi
23M
2:53:21
Rank: #9814 (+195)
35K → 23M
9:34 | 7:38/mi
24M
3:00:56
Rank: #9715 (+99)
23M → 24M
7:35 | 7:35/mi
40K· 24.85 mi
3:07:19
Rank: #9545 (+170)
24M → 40K
6:23 | 7:28/mi
25.2M
3:10:07
Rank: #9484 (+61)
40K → 25.2M
2:48 | 8:07/mi
Finish· 26.22 mi
3:17:26
Rank: #9343 (+141)
25.2M → Finish
7:19 | 7:11/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:39
Pace7:27 /mi
2nd Half
Distance13.11 mi
Time1:39:47
Pace7:37 /mi
📊Positive Split: 2.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:5922:567:2322:56
7:23
-
10K
6.21 mi11:12:1346:107:2623:14
7:29
+0:06
15K
9.32 mi11:35:251:09:227:2723:12
7:28
-0:01
20K
12.43 mi11:58:411:32:387:2723:16
7:29
+0:01
Half
13.11 mi12:03:421:37:397:275:01
7:21
-0:08
25K
15.53 mi12:21:471:55:447:2718:05
7:27
+0:06
30K
18.64 mi12:45:392:19:367:2923:52
7:41
+0:14
20M
20.00 mi12:56:132:30:107:3010:34
7:47
+0:06
21M
21.00 mi13:04:142:38:117:328:01
8:01
+0:14
35K
21.75 mi13:09:502:43:477:325:36
7:29
-0:32
23M
23.00 mi13:19:242:53:217:329:34
7:38
+0:09
24M
24.00 mi13:26:593:00:567:327:35
7:35
-0:03
40K
24.85 mi13:33:223:07:197:326:23
7:28
-0:07
25.2M
25.20 mi13:36:103:10:077:332:48
8:07
+0:39
Finish
26.22 mi13:43:293:17:267:327:19
7:11
-0:56

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

7:11 /mi

Average Pace

7:32 /mi

Slowest Pace

8:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:06:37

95% of race

Time at Steady Pace

10:49

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:32 /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 mi10:48:5922:567:2322:56
7:23
#11150
10K
6.21 mi11:12:1346:107:2623:14
7:29
#11514
15K
9.32 mi11:35:251:09:227:2723:12
7:28
#11473
20K
12.43 mi11:58:411:32:387:2723:16
7:29
#11263
Half
13.11 mi12:03:421:37:397:275:01
7:21
#11215
25K
15.53 mi12:21:471:55:447:2718:05
7:27
#10898
30K
18.64 mi12:45:392:19:367:2923:52
7:41
#10485
20M
20.00 mi12:56:132:30:107:3010:34
7:47
#10324
21M
21.00 mi13:04:142:38:117:328:01
8:01
#10110
35K
21.75 mi13:09:502:43:477:325:36
7:29
#10009
23M
23.00 mi13:19:242:53:217:329:34
7:38
#9814
24M
24.00 mi13:26:593:00:567:327:35
7:35
#9715
40K
24.85 mi13:33:223:07:197:326:23
7:28
#9545
25.2M
25.20 mi13:36:103:10:077:332:48
8:07
#9484
Finish
26.22 mi13:43:293:17:267:327:19
7:11
#9343
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi111502352235211491(Top 40%)2626(Top 21%)2626(Top 48%)
10K6.21 mi3.10 mi11514-3642558-2062558-20611906(Top 42%)2758(Top 23%)2758(Top 50%)
15K9.32 mi3.11 mi11473+412568-102568-1011491(Top 40%)2626(Top 21%)2626(Top 48%)
20K12.43 mi3.11 mi11263+2102486+822486+8210673(Top 38%)2296(Top 19%)2296(Top 42%)
Half13.11 mi0.68 mi11215+482461+252461+2510516(Top 37%)2181(Top 18%)2181(Top 40%)
25K15.53 mi2.42 mi10898+3172331+1302331+1309626(Top 34%)1939(Top 16%)1939(Top 35%)
30K18.64 mi3.11 mi10485+4132199+1322199+1329084(Top 32%)1877(Top 15%)1877(Top 34%)
20M20.00 mi1.36 mi10324+1612159+402159+408892(Top 31%)1931(Top 16%)1931(Top 35%)
21M21.00 mi1.00 mi10110+2142090+692090+697462(Top 26%)1496(Top 12%)1496(Top 27%)
35K21.75 mi0.75 mi10009+1012071+192071+198554(Top 30%)1920(Top 16%)1920(Top 35%)
23M23.00 mi1.25 mi9814+1952014+572014+577540(Top 27%)1631(Top 13%)1631(Top 30%)
24M24.00 mi1.00 mi9715+991999+151999+158323(Top 29%)2015(Top 16%)2015(Top 37%)
40K24.85 mi0.85 mi9545+1701952+471952+476643(Top 23%)1408(Top 12%)1408(Top 26%)
25.2M25.20 mi0.35 mi9484+611945+71945+76680(Top 24%)1508(Top 12%)1508(Top 28%)
Finish26.22 mi1.02 mi9343+1411918+271918+276955(Top 24%)1632(Top 13%)1632(Top 30%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21stories
+97ft-345ft

Overall

11491

Females

2626

F18-39

2626

5K→10K

3.1 - 6.2 mi

Top 42%
×5stories
+79ft-138ft

Overall

11906

Females

2758

F18-39

2758

10K→15K

6.2 - 9.3 mi

Top 40%
×3stories
+67ft-78ft

Overall

11491

Females

2626

F18-39

2626

15K→20K

9.3 - 12.4 mi

Top 38%
×5stories
+106ft-86ft

Overall

10673

Females

2296

F18-39

2296

20K→Half

12.4 - 13.1 mi

Top 37%
×2stories
+19ft-37ft

Overall

10516

Females

2181

F18-39

2181

Half→25K

13.1 - 15.5 mi

Top 34%
×4stories
+66ft-88ft

Overall

9626

Females

1939

F18-39

1939

25K→30K

15.5 - 18.6 mi

Top 32%
×9stories
+181ft-148ft

Overall

9084

Females

1877

F18-39

1877

30K→20M

18.6 - 20.0 mi

Top 31%
×5stories
+64ft-50ft

Overall

8892

Females

1931

F18-39

1931

20M→21M

20.0 - 21.0 mi

Top 26%
×8stories
+106ft-24ft

Overall

7462

Females

1496

F18-39

1496

21M→35K

21.0 - 21.8 mi

Top 30%
×7stories
+17ft-86ft

Overall

8554

Females

1920

F18-39

1920

35K→23M

21.8 - 23.0 mi

Top 27%
×5stories
+23ft-63ft

Overall

7540

Females

1631

F18-39

1631

23M→24M

23.0 - 24.0 mi

Top 29%
×6stories
+12ft-82ft

Overall

8323

Females

2015

F18-39

2015

24M→40K

24.0 - 24.9 mi

Top 23%
×1story
+6ft-20ft

Overall

6643

Females

1408

F18-39

1408

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6680

Females

1508

F18-39

1508

25.2M→Finish

25.2 - 26.2 mi

Top 24%
×2stories
+22ft-21ft

Overall

6955

Females

1632

F18-39

1632

Passing Analysis

Category:
Athletes Passed
2755*
Passed By
948
Net Change
+1807
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11150
5K → 10K122486-364#11150#11514
10K → 15K196155+41#11514#11473
15K → 20K28575+210#11473#11263
20K → Half5810+48#11263#11215
Half → 25K33619+317#11215#10898
25K → 30K45946+413#10898#10485
30K → 20M20746+161#10485#10324
20M → 21M2217+214#10324#10110
21M → 35K11918+101#10110#10009
35K → 23M219*24+195#10009#9814
23M → 24M13031+99#9814#9715
24M → 40K1777+170#9715#9545
40K → 25.2M654+61#9545#9484
25.2M → Finish16120+141#9484#9343
TOTALS2755*948+1807

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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