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BOSTON MARATHON 2025

Sarah Korenbaum

MA

Bib: 15485 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 39%
Gender (Female)
#0 / 12228
Top 23%
Masters (Masters Women)
#0 / 6759
Top 9%
Division (F40-44)
#0 / 1718
Top 21%
Race Day Weather
50°/40°F
broken clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:54/mi
24:33
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:46/mi
48:41
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:46/mi
1:12:48
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:46/mi
1:36:55
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:46/mi
1:42:13
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:43/mi
2:00:56
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:46/mi
2:25:05
↑ 181↓ 1480.2%
138 ft elev
20M
7:45/mi
2:35:37
↑ 64↓ 500.2%
148 ft elev
21M
7:51/mi
2:43:28
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:38/mi
2:49:11
↑ 17↓ 861.7%
156 ft elev
23M
7:42/mi
2:58:50
↑ 23↓ 630.6%
116 ft elev
24M
7:36/mi
3:06:26
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:35/mi
3:12:55
↓ 200.3%
20 ft elev
25.2M
8:10/mi
3:15:44
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:11/mi
3:23:03
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:42:137:48 /mi+1.4%
2nd Half
1:40:507:42 /mi✓ faster
Negative split — 1.4% faster in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
24:337:543.11 mi24:33
7:54
-
10K
48:417:503.10 mi24:08
7:46
-0:08
15K
1:12:487:493.11 mi24:07
7:46
0:00
20K
1:36:557:483.11 mi24:07
7:46
0:00
Half(13.11 mi)
1:42:137:480.68 mi5:18
7:46
0:00
25K
2:00:567:472.42 mi18:43
7:43
-0:03
30K
2:25:057:473.11 mi24:09
7:46
+0:03
20M
2:35:377:471.36 mi10:32
7:45
-0:01
21M
2:43:287:471.00 mi7:51
7:51
+0:06
35K
2:49:117:470.75 mi5:43
7:38
-0:13
23M
2:58:507:471.25 mi9:39
7:42
+0:04
24M
3:06:267:461.00 mi7:36
7:36
-0:06
40K
3:12:557:460.85 mi6:29
7:35
-0:01
25.2M
3:15:447:460.35 mi2:49
8:10
+0:35
Finish(26.22 mi)
3:23:037:451.02 mi7:19
7:11
-0:59
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

7:11 /mi

Average Pace

7:45 /mi

Slowest Pace

8:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

3:20:14

99% of race

Time at Steady Pace

2:49

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:45 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi15700495249521403640284028
10K3.10 mi15094+6064596+3564596+3561451842554255
15K3.11 mi14714+3804378+2184378+2181403640284028
20K3.11 mi14236+4784138+2404138+2401296335223522
Half(13.11 mi)0.68 mi14226+104135+34135+31399040234023
25K2.42 mi13763+4633904+2313904+2311171229712971
30K3.11 mi12923+8403505+3993505+399974421652165
20M1.36 mi12568+3553345+1603345+160875618681868
21M1.00 mi12169+3993166+1793166+179654211331133
35K0.75 mi12063+1063130+363130+36968624612461
23M1.25 mi11764+2993010+1203010+120796618151815
24M1.00 mi11578+1862957+532957+53844420762076
40K0.85 mi11361+2172881+762881+76735517071707
25.2M0.35 mi11256+1052846+352846+35698516571657
Finish(26.22 mi)1.02 mi11051+2052769+772769+77696216391639

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21story building
+97ft-345ft

Overall

14036

Females

4028

F40-44

4028

5K→10K

3.1 - 6.2 mi

Top 51%
×5story building
+79ft-138ft

Overall

14518

Females

4255

F40-44

4255

10K→15K

6.2 - 9.3 mi

Top 49%
×3story building
+67ft-78ft

Overall

14036

Females

4028

F40-44

4028

15K→20K

9.3 - 12.4 mi

Top 46%
×5story building
+106ft-86ft

Overall

12963

Females

3522

F40-44

3522

20K→Half

12.4 - 13.1 mi

Top 49%
×2story building
+19ft-37ft

Overall

13990

Females

4023

F40-44

4023

Half→25K

13.1 - 15.5 mi

Top 41%
×4story building
+66ft-88ft

Overall

11712

Females

2971

F40-44

2971

25K→30K

15.5 - 18.6 mi

Top 34%
×9story building
+181ft-148ft

Overall

9744

Females

2165

F40-44

2165

30K→20M

18.6 - 20.0 mi

Top 31%
×5story building
+64ft-50ft

Overall

8756

Females

1868

F40-44

1868

20M→21M

20.0 - 21.0 mi

Top 23%
×8story building
+106ft-24ft

Overall

6542

Females

1133

F40-44

1133

21M→35K

21.0 - 21.8 mi

Top 34%
×7story building
+17ft-86ft

Overall

9686

Females

2461

F40-44

2461

35K→23M

21.8 - 23.0 mi

Top 28%
×5story building
+23ft-63ft

Overall

7966

Females

1815

F40-44

1815

23M→24M

23.0 - 24.0 mi

Top 30%
×6story building
+12ft-82ft

Overall

8444

Females

2076

F40-44

2076

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

7355

Females

1707

F40-44

1707

40K→25.2M

24.9 - 25.2 mi

Top 25%
×1story
+13ft-16ft

Overall

6985

Females

1657

F40-44

1657

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2story building
+22ft-21ft

Overall

6962

Females

1639

F40-44

1639

Passing Analysis

Category:
Passed
4916
Passed By
267
Net Change
+4649
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15700
5K → 10K710104+606#15700#15094
10K → 15K43252+380#15094#14714
15K → 20K50224+478#14714#14236
20K → Half3727+10#14236#14226
Half → 25K4696+463#14226#13763
25K → 30K8433+840#13763#12923
30K → 20M3627+355#12923#12568
20M → 21M3990+399#12568#12169
21M → 35K11812+106#12169#12063
35K → 23M3045+299#12063#11764
23M → 24M19812+186#11764#11578
24M → 40K2203+217#11578#11361
40K → 25.2M1094+105#11361#11256
25.2M → Finish2138+205#11256#11051
TOTALS4916267+4649

Passing Charts

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