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BOSTON MARATHON 2025

Nicole Sobski

IL

Bib: 26120 F

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

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
9:03/mi
28:08
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:43/mi
55:14
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:47/mi
1:22:32
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
9:14/mi
1:51:13
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
10:46/mi
1:58:34
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
10:03/mi
2:22:56
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
10:14/mi
2:54:44
↑ 181↓ 1480.2%
138 ft elev
20M
10:40/mi
3:09:14
↑ 64↓ 500.2%
148 ft elev
21M
26:00/mi
3:35:14
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
9:35/mi
3:42:24
↑ 17↓ 861.7%
156 ft elev
23M
10:48/mi
3:55:55
↑ 23↓ 630.6%
116 ft elev
24M
10:39/mi
4:06:34
↓ 821.3%
34 ft elev
40K· 24.85 mi
10:41/mi
4:15:42
↓ 200.3%
20 ft elev
25.2M
11:50/mi
4:19:47
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
9:41/mi
4:29:39
↑ 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
1:58:349:03 /mi⚡ faster
2nd Half
2:31:0511:32 /mi+27.4%
Positive split — 27.4% slower in the second half
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Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:2728:089:0328:08
9:03
-
10K
6.21 mi12:15:3355:148:5327:06
8:43
-0:20
15K
9.32 mi12:42:511:22:328:5127:18
8:47
+0:04
20K
12.43 mi13:11:321:51:138:5728:41
9:14
+0:27
Half
13.11 mi13:18:531:58:349:037:21
10:46
+1:32
25K
15.53 mi13:43:152:22:569:1224:22
10:03
-0:43
30K
18.64 mi14:15:032:54:449:2231:48
10:14
+0:11
20M
20.00 mi14:29:333:09:149:2814:30
10:40
+0:26
21M
21.00 mi14:55:333:35:1410:1526:00
26:00
+15:20
35K
21.75 mi15:02:433:42:2410:147:10
9:35
-16:25
23M
23.00 mi15:16:143:55:5510:1513:31
10:48
+1:13
24M
24.00 mi15:26:534:06:3410:1610:39
10:39
-0:09
40K
24.85 mi15:36:014:15:4210:179:08
10:41
+0:02
25.2M
25.20 mi15:40:064:19:4710:194:05
11:50
+1:09
Finish
26.22 mi15:49:584:29:3910:189:52
9:41
-2:09

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

8:43 /mi

Average Pace

10:18 /mi

Slowest Pace

26:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

4:03:39

90% of race

Time at Slower Pace

26:00

10% of race

Average Pace: 10:17 /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 mi11:48:2728:089:0328:08
9:03
#22676
10K
6.21 mi12:15:3355:148:5327:06
8:43
#21907
15K
9.32 mi12:42:511:22:328:5127:18
8:47
#21561
20K
12.43 mi13:11:321:51:138:5728:41
9:14
#21704
Half
13.11 mi13:18:531:58:349:037:21
10:46
#22120
25K
15.53 mi13:43:152:22:569:1224:22
10:03
#22438
30K
18.64 mi14:15:032:54:449:2231:48
10:14
#22411
20M
20.00 mi14:29:333:09:149:2814:30
10:40
#22444
21M
21.00 mi14:55:333:35:1410:1526:00
26:00
#24351
35K
21.75 mi15:02:433:42:2410:147:10
9:35
#24236
23M
23.00 mi15:16:143:55:5510:1513:31
10:48
#24140
24M
24.00 mi15:26:534:06:3410:1610:39
10:39
#24108
40K
24.85 mi15:36:014:15:4210:179:08
10:41
#24055
25.2M
25.20 mi15:40:064:19:4710:194:05
11:50
#24044
Finish
26.22 mi15:49:584:29:3910:189:52
9:41
#23982
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi22676899889982097779917991
10K6.21 mi3.10 mi21907+7698552+4468552+4462102480338033
15K9.32 mi3.11 mi21561+3468338+2148338+2142097779917991
20K12.43 mi3.11 mi21704-1438440-1028440-1022202585998599
Half13.11 mi0.68 mi22120-4168663-2238663-223262151094510945
25K15.53 mi2.42 mi22438-3188832-1698832-1692339294219421
30K18.64 mi3.11 mi22411+278859-278859-272228389338933
20M20.00 mi1.36 mi22444-338898-398898-392289593669366
21M21.00 mi1.00 mi24351-19079958-10609958-1060283961222512225
35K21.75 mi0.75 mi24236+1159908+509908+502065183338333
23M23.00 mi1.25 mi24140+969873+359873+352274994729472
24M24.00 mi1.00 mi24108+329874-19874-12321697439743
40K24.85 mi0.85 mi24055+539856+189856+182242094269426
25.2M25.20 mi0.35 mi24044+119854+29854+22292896289628
Finish26.22 mi1.02 mi23982+629832+229832+222187991049104

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 74%
×21story building
+97ft-345ft

Overall

20977

Females

7991

F18-39

7991

5K→10K

3.1 - 6.2 mi

Top 74%
×5story building
+79ft-138ft

Overall

21024

Females

8033

F18-39

8033

10K→15K

6.2 - 9.3 mi

Top 74%
×3story building
+67ft-78ft

Overall

20977

Females

7991

F18-39

7991

15K→20K

9.3 - 12.4 mi

Top 78%
×5story building
+106ft-86ft

Overall

22025

Females

8599

F18-39

8599

20K→Half

12.4 - 13.1 mi

Top 92%
×2story building
+19ft-37ft

Overall

26215

Females

10945

F18-39

10945

Half→25K

13.1 - 15.5 mi

Top 82%
×4story building
+66ft-88ft

Overall

23392

Females

9421

F18-39

9421

25K→30K

15.5 - 18.6 mi

Top 78%
×9story building
+181ft-148ft

Overall

22283

Females

8933

F18-39

8933

30K→20M

18.6 - 20.0 mi

Top 81%
×5story building
+64ft-50ft

Overall

22895

Females

9366

F18-39

9366

20M→21M

20.0 - 21.0 mi

Top 100%
×8story building
+106ft-24ft

Overall

28396

Females

12225

F18-39

12225

21M→35K

21.0 - 21.8 mi

Top 73%
×7story building
+17ft-86ft

Overall

20651

Females

8333

F18-39

8333

35K→23M

21.8 - 23.0 mi

Top 80%
×5story building
+23ft-63ft

Overall

22749

Females

9472

F18-39

9472

23M→24M

23.0 - 24.0 mi

Top 82%
×6story building
+12ft-82ft

Overall

23216

Females

9743

F18-39

9743

24M→40K

24.0 - 24.9 mi

Top 79%
×1story
+6ft-20ft

Overall

22420

Females

9426

F18-39

9426

40K→25.2M

24.9 - 25.2 mi

Top 81%
×1story
+13ft-16ft

Overall

22928

Females

9628

F18-39

9628

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×2story building
+22ft-21ft

Overall

21879

Females

9104

F18-39

9104

Passing Analysis

Category:
Athletes Passed
2154
Passed By
3460
Net Change
-1306
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22676
5K → 10K80940+769#22676#21907
10K → 15K41468+346#21907#21561
15K → 20K148291-143#21561#21704
20K → Half3419-416#21704#22120
Half → 25K58376-318#22120#22438
25K → 30K194167+27#22438#22411
30K → 20M6598-33#22411#22444
20M → 21M21909-1907#22444#24351
21M → 35K1161+115#24351#24236
35K → 23M11418+96#24236#24140
23M → 24M6432+32#24140#24108
24M → 40K6815+53#24108#24055
40K → 25.2M2110+11#24055#24044
25.2M → Finish7816+62#24044#23982
TOTALS21543460-1306

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