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BOSTON MARATHON 2025

Breda White

Bib: 21480•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F55-59)
#0 / 994
Top 40%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:21/mi
25:57
↑ 97↓ 3451.5%
10K· 6.21 mi
8:34/mi
52:34
↑ 79↓ 1380.4%
15K· 9.32 mi
8:36/mi
1:19:16
↑ 67↓ 78
20K· 12.43 mi
8:49/mi
1:46:40
↑ 106↓ 860.1%
Half· 13.11 mi
8:52/mi
1:52:43
↑ 19↓ 370.5%
25K· 15.53 mi
9:08/mi
2:14:51
↑ 66↓ 880.2%
30K· 18.64 mi
9:30/mi
2:44:21
↑ 181↓ 1480.2%
20M
9:41/mi
2:57:31
↑ 64↓ 500.2%
21M
10:16/mi
3:07:47
↑ 106↓ 241.6%
35K· 21.75 mi
9:13/mi
3:14:41
↑ 17↓ 861.7%
23M
9:26/mi
3:26:30
↑ 23↓ 630.6%
24M
9:23/mi
3:35:53
↓ 821.3%
40K· 24.85 mi
9:19/mi
3:43:51
↓ 200.3%
25.2M
10:32/mi
3:47:29
↑ 13↓ 160.2%
Finish· 26.22 mi
9:28/mi
3:57:08
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:43
Pace8:36 /mi
2nd Half
Distance13.11 mi
Time2:04:25
Pace9:29 /mi
📊Positive Split: 10.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:0125:578:2125:57
8:21
-
10K
6.21 mi11:47:3852:348:2826:37
8:34
+0:13
15K
9.32 mi12:14:201:19:168:3026:42
8:36
+0:02
20K
12.43 mi12:41:441:46:408:3527:24
8:49
+0:13
Half
13.11 mi12:47:471:52:438:366:03
8:52
+0:03
25K
15.53 mi13:09:552:14:518:4122:08
9:08
+0:16
30K
18.64 mi13:39:252:44:218:4929:30
9:30
+0:22
20M
20.00 mi13:52:352:57:318:5313:10
9:41
+0:11
21M
21.00 mi14:02:513:07:478:5710:16
10:16
+0:35
35K
21.75 mi14:09:453:14:418:576:54
9:13
-1:03
23M
23.00 mi14:21:343:26:308:5911:49
9:26
+0:13
24M
24.00 mi14:30:573:35:539:009:23
9:23
-0:03
40K
24.85 mi14:38:553:43:519:007:58
9:19
-0:04
25.2M
25.20 mi14:42:333:47:299:023:38
10:32
+1:13
Finish
26.22 mi14:52:123:57:089:039:39
9:28
-1:04

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

8:21 /mi

Average Pace

9:03 /mi

Slowest Pace

10:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:52:43

48% of race

Time at Steady Pace

1:37:21

41% of race

Time at Slower Pace

27:04

11% of race

Average Pace: 9:03 /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 mi11:21:0125:578:2125:57
8:21
#19045
10K
6.21 mi11:47:3852:348:2826:37
8:34
#19595
15K
9.32 mi12:14:201:19:168:3026:42
8:36
#19692
20K
12.43 mi12:41:441:46:408:3527:24
8:49
#19789
Half
13.11 mi12:47:471:52:438:366:03
8:52
#19863
25K
15.53 mi13:09:552:14:518:4122:08
9:08
#19949
30K
18.64 mi13:39:252:44:218:4929:30
9:30
#19966
20M
20.00 mi13:52:352:57:318:5313:10
9:41
#19964
21M
21.00 mi14:02:513:07:478:5710:16
10:16
#19913
35K
21.75 mi14:09:453:14:418:576:54
9:13
#19882
23M
23.00 mi14:21:343:26:308:5911:49
9:26
#19811
24M
24.00 mi14:30:573:35:539:009:23
9:23
#19773
40K
24.85 mi14:38:553:43:519:007:58
9:19
#19716
25.2M
25.20 mi14:42:333:47:299:023:38
10:32
#19707
Finish
26.22 mi14:52:123:57:089:039:39
9:28
#19768
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi190456936693619900(Top 70%)7388(Top 60%)7388(Top 743%)
10K6.21 mi3.10 mi19595-5507239-3037239-30320188(Top 71%)7571(Top 62%)7571(Top 762%)
15K9.32 mi3.11 mi19692-977286-477286-4719900(Top 70%)7388(Top 60%)7388(Top 743%)
20K12.43 mi3.11 mi19789-977357-717357-7120043(Top 71%)7502(Top 61%)7502(Top 755%)
Half13.11 mi0.68 mi19863-747397-407397-4021247(Top 75%)8161(Top 67%)8161(Top 821%)
25K15.53 mi2.42 mi19949-867455-587455-5820489(Top 72%)7803(Top 64%)7803(Top 785%)
30K18.64 mi3.11 mi19966-177505-507505-5019928(Top 70%)7622(Top 62%)7622(Top 767%)
20M20.00 mi1.36 mi19964+27525-207525-2019912(Top 70%)7732(Top 63%)7732(Top 778%)
21M21.00 mi1.00 mi19913+517520+57520+519261(Top 68%)7471(Top 61%)7471(Top 752%)
35K21.75 mi0.75 mi19882+317517+37517+319291(Top 68%)7600(Top 62%)7600(Top 765%)
23M23.00 mi1.25 mi19811+717514+37514+318427(Top 65%)7201(Top 59%)7201(Top 724%)
24M24.00 mi1.00 mi19773+387521-77521-719181(Top 68%)7642(Top 62%)7642(Top 769%)
40K24.85 mi0.85 mi19716+577504+177504+1717962(Top 63%)7116(Top 58%)7116(Top 716%)
25.2M25.20 mi0.35 mi19707+97508-47508-419183(Top 68%)7738(Top 63%)7738(Top 778%)
Finish26.22 mi1.02 mi19768-617552-447552-4421072(Top 74%)8689(Top 71%)8689(Top 874%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21story building
+97ft-345ft

Overall

19900

Females

7388

F55-59

7388

5K→10K

3.1 - 6.2 mi

Top 71%
×5story building
+79ft-138ft

Overall

20188

Females

7571

F55-59

7571

10K→15K

6.2 - 9.3 mi

Top 70%
×3story building
+67ft-78ft

Overall

19900

Females

7388

F55-59

7388

15K→20K

9.3 - 12.4 mi

Top 71%
×5story building
+106ft-86ft

Overall

20043

Females

7502

F55-59

7502

20K→Half

12.4 - 13.1 mi

Top 75%
×2story building
+19ft-37ft

Overall

21247

Females

8161

F55-59

8161

Half→25K

13.1 - 15.5 mi

Top 72%
×4story building
+66ft-88ft

Overall

20489

Females

7803

F55-59

7803

25K→30K

15.5 - 18.6 mi

Top 70%
×9story building
+181ft-148ft

Overall

19928

Females

7622

F55-59

7622

30K→20M

18.6 - 20.0 mi

Top 70%
×5story building
+64ft-50ft

Overall

19912

Females

7732

F55-59

7732

20M→21M

20.0 - 21.0 mi

Top 68%
×8story building
+106ft-24ft

Overall

19261

Females

7471

F55-59

7471

21M→35K

21.0 - 21.8 mi

Top 68%
×7story building
+17ft-86ft

Overall

19291

Females

7600

F55-59

7600

35K→23M

21.8 - 23.0 mi

Top 65%
×5story building
+23ft-63ft

Overall

18427

Females

7201

F55-59

7201

23M→24M

23.0 - 24.0 mi

Top 68%
×6story building
+12ft-82ft

Overall

19181

Females

7642

F55-59

7642

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

17962

Females

7116

F55-59

7116

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1story
+13ft-16ft

Overall

19183

Females

7738

F55-59

7738

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2story building
+22ft-21ft

Overall

21072

Females

8689

F55-59

8689

Passing Analysis

Category:
Athletes Passed
1439
Passed By
2162
Net Change
-723
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19045
5K → 10K89639-550#19045#19595
10K → 15K155252-97#19595#19692
15K → 20K171268-97#19692#19789
20K → Half1387-74#19789#19863
Half → 25K137223-86#19863#19949
25K → 30K220237-17#19949#19966
30K → 20M112110+2#19966#19964
20M → 21M11665+51#19964#19913
21M → 35K6534+31#19913#19882
35K → 23M12251+71#19882#19811
23M → 24M9153+38#19811#19773
24M → 40K8225+57#19773#19716
40K → 25.2M2819+9#19716#19707
25.2M → Finish3899-61#19707#19768
TOTALS14392162-723
📊

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