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BOSTON MARATHON 2025

Britt Miller

Bib: 16502•F

PA

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
25:32
Rank: #18251
Start → 5K
8:13/mi
25:32 split
10K· 6.21 mi
50:53
Rank: #17909 (+342)
5K → 10K
8:10/mi
25:21 split
15K· 9.32 mi
1:17:00
Rank: #18165 (-256)
10K → 15K
8:24/mi
26:07 split
20K· 12.43 mi
1:44:17
Rank: #18604 (-439)
15K → 20K
8:47/mi
27:17 split
Half· 13.11 mi
1:50:08
Rank: #18654 (-50)
20K → Half
8:34/mi
5:51 split
25K· 15.53 mi
2:12:43
Rank: #19179 (-525)
Half → 25K
9:19/mi
22:35 split
30K· 18.64 mi
2:41:24
Rank: #19092 (+87)
25K → 30K
9:14/mi
28:41 split
20M
2:55:02
Rank: #19300 (-208)
30K → 20M
10:02/mi
13:38 split
21M
3:06:02
Rank: #19482 (-182)
20M → 21M
11:00/mi
11:00 split
35K· 21.75 mi
3:13:36
Rank: #19648 (-166)
21M → 35K
10:07/mi
7:34 split
23M
3:26:18
Rank: #19752 (-104)
35K → 23M
10:09/mi
12:42 split
24M
3:36:44
Rank: #19955 (-203)
23M → 24M
10:26/mi
10:26 split
40K· 24.85 mi
3:45:29
Rank: #20025 (-70)
24M → 40K
10:14/mi
8:45 split
25.2M
3:49:10
Rank: #20031 (-6)
40K → 25.2M
10:41/mi
3:41 split
Finish· 26.22 mi
3:58:24
Rank: #20024 (+7)
25.2M → Finish
9:04/mi
9:14 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:08
Pace8:24 /mi
2nd Half
Distance13.11 mi
Time2:08:16
Pace9:47 /mi
📊Positive Split: 16.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:0625:328:1325:32
8:13
-
10K
6.21 mi11:41:2750:538:1125:21
8:10
-0:03
15K
9.32 mi12:07:341:17:008:1626:07
8:24
+0:14
20K
12.43 mi12:34:511:44:178:2327:17
8:47
+0:23
Half
13.11 mi12:40:421:50:088:245:51
8:34
-0:13
25K
15.53 mi13:03:172:12:438:3322:35
9:19
+0:45
30K
18.64 mi13:31:582:41:248:3928:41
9:14
-0:05
20M
20.00 mi13:45:362:55:028:4513:38
10:02
+0:48
21M
21.00 mi13:56:363:06:028:5211:00
11:00
+0:58
35K
21.75 mi14:04:103:13:368:547:34
10:07
-0:53
23M
23.00 mi14:16:523:26:188:5812:42
10:09
+0:02
24M
24.00 mi14:27:183:36:449:0210:26
10:26
+0:17
40K
24.85 mi14:36:033:45:299:048:45
10:14
-0:12
25.2M
25.20 mi14:39:443:49:109:063:41
10:41
+0:27
Finish
26.22 mi14:48:583:58:249:069:14
9:04
-1:37

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

8:10 /mi

Average Pace

9:06 /mi

Slowest Pace

11:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:50:08

46% of race

Time at Steady Pace

1:00:30

25% of race

Time at Slower Pace

1:07:46

28% of race

Average Pace: 9:06 /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 mi11:16:0625:328:1325:32
8:13
#18251
10K
6.21 mi11:41:2750:538:1125:21
8:10
#17909
15K
9.32 mi12:07:341:17:008:1626:07
8:24
#18165
20K
12.43 mi12:34:511:44:178:2327:17
8:47
#18604
Half
13.11 mi12:40:421:50:088:245:51
8:34
#18654
25K
15.53 mi13:03:172:12:438:3322:35
9:19
#19179
30K
18.64 mi13:31:582:41:248:3928:41
9:14
#19092
20M
20.00 mi13:45:362:55:028:4513:38
10:02
#19300
21M
21.00 mi13:56:363:06:028:5211:00
11:00
#19482
35K
21.75 mi14:04:103:13:368:547:34
10:07
#19648
23M
23.00 mi14:16:523:26:188:5812:42
10:09
#19752
24M
24.00 mi14:27:183:36:449:0210:26
10:26
#19955
40K
24.85 mi14:36:033:45:299:048:45
10:14
#20025
25.2M
25.20 mi14:39:443:49:109:063:41
10:41
#20031
Finish
26.22 mi14:48:583:58:249:069:14
9:04
#20024
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi182516495649518759(Top 66%)6763(Top 55%)6763(Top 124%)
10K6.21 mi3.10 mi17909+3426275+2206275+22017635(Top 62%)6083(Top 50%)6083(Top 111%)
15K9.32 mi3.11 mi18165-2566429-1546429-15418759(Top 66%)6763(Top 55%)6763(Top 124%)
20K12.43 mi3.11 mi18604-4396679-2506679-25019857(Top 70%)7409(Top 61%)7409(Top 135%)
Half13.11 mi0.68 mi18654-506710-316710-3119742(Top 70%)7330(Top 60%)7330(Top 134%)
25K15.53 mi2.42 mi19179-5257017-3077017-30721243(Top 75%)8225(Top 67%)8225(Top 150%)
30K18.64 mi3.11 mi19092+877013+47013+418811(Top 66%)7020(Top 57%)7020(Top 128%)
20M20.00 mi1.36 mi19300-2087155-1427155-14221071(Top 74%)8394(Top 69%)8394(Top 153%)
21M21.00 mi1.00 mi19482-1827276-1217276-12121401(Top 75%)8651(Top 71%)8651(Top 158%)
35K21.75 mi0.75 mi19648-1667391-1157391-11522223(Top 78%)9145(Top 75%)9145(Top 167%)
23M23.00 mi1.25 mi19752-1047484-937484-9320944(Top 74%)8521(Top 70%)8521(Top 156%)
24M24.00 mi1.00 mi19955-2037620-1367620-13622638(Top 80%)9447(Top 77%)9447(Top 173%)
40K24.85 mi0.85 mi20025-707672-527672-5221188(Top 75%)8758(Top 72%)8758(Top 160%)
25.2M25.20 mi0.35 mi20031-67687-157687-1519693(Top 69%)8004(Top 65%)8004(Top 146%)
Finish26.22 mi1.02 mi20024+77693-67693-619355(Top 68%)7787(Top 64%)7787(Top 142%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21story building
+97ft-345ft

Overall

18759

Females

6763

F18-39

6763

5K→10K

3.1 - 6.2 mi

Top 62%
×5story building
+79ft-138ft

Overall

17635

Females

6083

F18-39

6083

10K→15K

6.2 - 9.3 mi

Top 66%
×3story building
+67ft-78ft

Overall

18759

Females

6763

F18-39

6763

15K→20K

9.3 - 12.4 mi

Top 70%
×5story building
+106ft-86ft

Overall

19857

Females

7409

F18-39

7409

20K→Half

12.4 - 13.1 mi

Top 70%
×2story building
+19ft-37ft

Overall

19742

Females

7330

F18-39

7330

Half→25K

13.1 - 15.5 mi

Top 75%
×4story building
+66ft-88ft

Overall

21243

Females

8225

F18-39

8225

25K→30K

15.5 - 18.6 mi

Top 66%
×9story building
+181ft-148ft

Overall

18811

Females

7020

F18-39

7020

30K→20M

18.6 - 20.0 mi

Top 74%
×5story building
+64ft-50ft

Overall

21071

Females

8394

F18-39

8394

20M→21M

20.0 - 21.0 mi

Top 75%
×8story building
+106ft-24ft

Overall

21401

Females

8651

F18-39

8651

21M→35K

21.0 - 21.8 mi

Top 78%
×7story building
+17ft-86ft

Overall

22223

Females

9145

F18-39

9145

35K→23M

21.8 - 23.0 mi

Top 74%
×5story building
+23ft-63ft

Overall

20944

Females

8521

F18-39

8521

23M→24M

23.0 - 24.0 mi

Top 80%
×6story building
+12ft-82ft

Overall

22638

Females

9447

F18-39

9447

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

21188

Females

8758

F18-39

8758

40K→25.2M

24.9 - 25.2 mi

Top 69%
×1story
+13ft-16ft

Overall

19693

Females

8004

F18-39

8004

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×2story building
+22ft-21ft

Overall

19355

Females

7787

F18-39

7787

Passing Analysis

Category:
Athletes Passed
1364
Passed By
3137
Net Change
-1773
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18251
5K → 10K481139+342#18251#17909
10K → 15K104360-256#17909#18165
15K → 20K91530-439#18165#18604
20K → Half2171-50#18604#18654
Half → 25K61586-525#18654#19179
25K → 30K265178+87#19179#19092
30K → 20M52260-208#19092#19300
20M → 21M49231-182#19300#19482
21M → 35K23189-166#19482#19648
35K → 23M57161-104#19648#19752
23M → 24M27230-203#19752#19955
24M → 40K37107-70#19955#20025
40K → 25.2M2834-6#20025#20031
25.2M → Finish6861+7#20031#20024
TOTALS13643137-1773
📊

Passing Visuals

Category:
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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