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BOSTON MARATHON 2025

Sonya Bressler

Bib: 23363•F

PA

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

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
8:46/mi
27:14
↑ 97↓ 3451.5%
10K· 6.21 mi
8:57/mi
55:03
↑ 79↓ 1380.4%
15K· 9.32 mi
8:55/mi
1:22:46
↑ 67↓ 78
20K· 12.43 mi
8:55/mi
1:50:29
↑ 106↓ 860.1%
Half· 13.11 mi
8:58/mi
1:56:36
↑ 19↓ 370.5%
25K· 15.53 mi
9:07/mi
2:18:42
↑ 66↓ 880.2%
30K· 18.64 mi
9:29/mi
2:48:09
↑ 181↓ 1480.2%
20M
9:45/mi
3:01:24
↑ 64↓ 500.2%
21M
9:59/mi
3:11:23
↑ 106↓ 241.6%
35K· 21.75 mi
9:24/mi
3:18:25
↑ 17↓ 861.7%
23M
9:20/mi
3:30:06
↑ 23↓ 630.6%
24M
9:19/mi
3:39:25
↓ 821.3%
40K· 24.85 mi
9:18/mi
3:47:22
↓ 200.3%
25.2M
10:03/mi
3:50:50
↑ 13↓ 160.2%
Finish· 26.22 mi
8:45/mi
3:59:45
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:36
Pace8:54 /mi
2nd Half
Distance13.11 mi
Time2:03:09
Pace9:24 /mi
📊Positive Split: 5.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:1127:148:4627:14
8:46
-
10K
6.21 mi11:51:0055:038:5227:49
8:57
+0:11
15K
9.32 mi12:18:431:22:468:5327:43
8:55
-0:02
20K
12.43 mi12:46:261:50:298:5327:43
8:55
0:00
Half
13.11 mi12:52:331:56:368:546:07
8:58
+0:03
25K
15.53 mi13:14:392:18:428:5622:06
9:07
+0:09
30K
18.64 mi13:44:062:48:099:0129:27
9:29
+0:22
20M
20.00 mi13:57:213:01:249:0413:15
9:45
+0:16
21M
21.00 mi14:07:203:11:239:079:59
9:59
+0:14
35K
21.75 mi14:14:223:18:259:077:02
9:24
-0:35
23M
23.00 mi14:26:033:30:069:0811:41
9:20
-0:04
24M
24.00 mi14:35:223:39:259:099:19
9:19
-0:01
40K
24.85 mi14:43:193:47:229:097:57
9:18
-0:01
25.2M
25.20 mi14:46:473:50:509:103:28
10:03
+0:45
Finish
26.22 mi14:55:423:59:459:098:55
8:45
-1:18

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

8:45 /mi

Average Pace

9:09 /mi

Slowest Pace

10:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:33:03

89% of race

Time at Steady Pace

26:42

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:09 /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 mi11:23:1127:148:4627:14
8:46
#21329
10K
6.21 mi11:51:0055:038:5227:49
8:57
#21748
15K
9.32 mi12:18:431:22:468:5327:43
8:55
#21707
20K
12.43 mi12:46:261:50:298:5327:43
8:55
#21388
Half
13.11 mi12:52:331:56:368:546:07
8:58
#21406
25K
15.53 mi13:14:392:18:428:5622:06
9:07
#21243
30K
18.64 mi13:44:062:48:099:0129:27
9:29
#20966
20M
20.00 mi13:57:213:01:249:0413:15
9:45
#20890
21M
21.00 mi14:07:203:11:239:079:59
9:59
#20695
35K
21.75 mi14:14:223:18:259:077:02
9:24
#20674
23M
23.00 mi14:26:033:30:069:0811:41
9:20
#20524
24M
24.00 mi14:35:223:39:259:099:19
9:19
#20479
40K
24.85 mi14:43:193:47:229:097:57
9:18
#20392
25.2M
25.20 mi14:46:473:50:509:103:28
10:03
#20361
Finish
26.22 mi14:55:423:59:459:098:55
8:45
#20312
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi213298257825721659(Top 76%)8359(Top 68%)8359(Top 642%)
10K6.21 mi3.10 mi21748-4198473-2168473-21622160(Top 78%)8693(Top 71%)8693(Top 667%)
15K9.32 mi3.11 mi21707+418440+338440+3321659(Top 76%)8359(Top 68%)8359(Top 642%)
20K12.43 mi3.11 mi21388+3198254+1868254+18620570(Top 72%)7817(Top 64%)7817(Top 600%)
Half13.11 mi0.68 mi21406-188268-148268-1421634(Top 76%)8402(Top 69%)8402(Top 645%)
25K15.53 mi2.42 mi21243+1638176+928176+9220403(Top 72%)7764(Top 63%)7764(Top 596%)
30K18.64 mi3.11 mi20966+2778072+1048072+10419855(Top 70%)7584(Top 62%)7584(Top 582%)
20M20.00 mi1.36 mi20890+768037+358037+3520096(Top 71%)7853(Top 64%)7853(Top 603%)
21M21.00 mi1.00 mi20695+1957958+797958+7918207(Top 64%)6910(Top 57%)6910(Top 530%)
35K21.75 mi0.75 mi20674+217960-27960-219916(Top 70%)7944(Top 65%)7944(Top 610%)
23M23.00 mi1.25 mi20524+1507900+607900+6017890(Top 63%)6946(Top 57%)6946(Top 533%)
24M24.00 mi1.00 mi20479+457891+97891+918858(Top 66%)7483(Top 61%)7483(Top 574%)
40K24.85 mi0.85 mi20392+877864+277864+2717808(Top 63%)7049(Top 58%)7049(Top 541%)
25.2M25.20 mi0.35 mi20361+317854+107854+1017177(Top 60%)6714(Top 55%)6714(Top 515%)
Finish26.22 mi1.02 mi20312+497845+97845+917734(Top 62%)6959(Top 57%)6959(Top 534%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21story building
+97ft-345ft

Overall

21659

Females

8359

F50-54

8359

5K→10K

3.1 - 6.2 mi

Top 78%
×5story building
+79ft-138ft

Overall

22160

Females

8693

F50-54

8693

10K→15K

6.2 - 9.3 mi

Top 76%
×3story building
+67ft-78ft

Overall

21659

Females

8359

F50-54

8359

15K→20K

9.3 - 12.4 mi

Top 72%
×5story building
+106ft-86ft

Overall

20570

Females

7817

F50-54

7817

20K→Half

12.4 - 13.1 mi

Top 76%
×2story building
+19ft-37ft

Overall

21634

Females

8402

F50-54

8402

Half→25K

13.1 - 15.5 mi

Top 72%
×4story building
+66ft-88ft

Overall

20403

Females

7764

F50-54

7764

25K→30K

15.5 - 18.6 mi

Top 70%
×9story building
+181ft-148ft

Overall

19855

Females

7584

F50-54

7584

30K→20M

18.6 - 20.0 mi

Top 71%
×5story building
+64ft-50ft

Overall

20096

Females

7853

F50-54

7853

20M→21M

20.0 - 21.0 mi

Top 64%
×8story building
+106ft-24ft

Overall

18207

Females

6910

F50-54

6910

21M→35K

21.0 - 21.8 mi

Top 70%
×7story building
+17ft-86ft

Overall

19916

Females

7944

F50-54

7944

35K→23M

21.8 - 23.0 mi

Top 63%
×5story building
+23ft-63ft

Overall

17890

Females

6946

F50-54

6946

23M→24M

23.0 - 24.0 mi

Top 66%
×6story building
+12ft-82ft

Overall

18858

Females

7483

F50-54

7483

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

17808

Females

7049

F50-54

7049

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

17177

Females

6714

F50-54

6714

25.2M→Finish

25.2 - 26.2 mi

Top 62%
×2story building
+22ft-21ft

Overall

17734

Females

6959

F50-54

6959

Passing Analysis

Category:
Athletes Passed
2197
Passed By
1180
Net Change
+1017
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21329
5K → 10K128547-419#21329#21748
10K → 15K223182+41#21748#21707
15K → 20K37354+319#21707#21388
20K → Half3048-18#21388#21406
Half → 25K22663+163#21406#21243
25K → 30K33457+277#21243#20966
30K → 20M13963+76#20966#20890
20M → 21M21116+195#20890#20695
21M → 35K6140+21#20695#20674
35K → 23M16717+150#20674#20524
23M → 24M7732+45#20524#20479
24M → 40K10316+87#20479#20392
40K → 25.2M4312+31#20392#20361
25.2M → Finish8233+49#20361#20312
TOTALS21971180+1017
📊

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