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BOSTON MARATHON 2025

Nicole Jackson

Bib: 10217•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 35%
Gender (Female)
#0 / 12228
Top 18%
Division (F18-39)
#0 / 5469
Top 31%
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
7:19/mi
22:45
↑ 97↓ 3451.5%
10K· 6.21 mi
7:27/mi
45:55
↑ 79↓ 1380.4%
15K· 9.32 mi
7:22/mi
1:08:47
↑ 67↓ 78
20K· 12.43 mi
7:27/mi
1:31:57
↑ 106↓ 860.1%
Half· 13.11 mi
7:24/mi
1:37:00
↑ 19↓ 370.5%
25K· 15.53 mi
7:27/mi
1:55:04
↑ 66↓ 880.2%
30K· 18.64 mi
7:38/mi
2:18:47
↑ 181↓ 1480.2%
20M
7:41/mi
2:29:14
↑ 64↓ 500.2%
21M
8:00/mi
2:37:14
↑ 106↓ 241.6%
35K· 21.75 mi
10:39/mi
2:45:12
↑ 17↓ 861.7%
23M
7:37/mi
2:54:44
↑ 23↓ 630.6%
24M
7:24/mi
3:02:08
↓ 821.3%
40K· 24.85 mi
7:28/mi
3:08:31
↓ 200.3%
25.2M
9:31/mi
3:11:48
↑ 13↓ 160.2%
Finish· 26.22 mi
7:22/mi
3:19:18
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:00
Pace7:24 /mi
2nd Half
Distance13.11 mi
Time1:42:18
Pace7:48 /mi
📊Positive Split: 5.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:3322:457:1922:45
7:19
-
10K
6.21 mi11:11:4345:557:2323:10
7:27
+0:08
15K
9.32 mi11:34:351:08:477:2322:52
7:22
-0:05
20K
12.43 mi11:57:451:31:577:2423:10
7:27
+0:05
Half
13.11 mi12:02:481:37:007:245:03
7:24
-0:03
25K
15.53 mi12:20:521:55:047:2418:04
7:27
+0:03
30K
18.64 mi12:44:352:18:477:2723:43
7:38
+0:11
20M
20.00 mi12:55:022:29:147:2810:27
7:41
+0:03
21M
21.00 mi13:03:022:37:147:298:00
8:00
+0:19
35K
21.75 mi13:11:002:45:127:367:58
10:39
+2:39
23M
23.00 mi13:20:322:54:447:369:32
7:37
-3:02
24M
24.00 mi13:27:563:02:087:357:24
7:24
-0:13
40K
24.85 mi13:34:193:08:317:356:23
7:28
+0:04
25.2M
25.20 mi13:37:363:11:487:373:17
9:31
+2:03
Finish
26.22 mi13:45:063:19:187:367:30
7:22
-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

7:19 /mi

Average Pace

7:36 /mi

Slowest Pace

10:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

3:00:03

90% of race

Time at Slower Pace

19:15

10% of race

Average Pace: 7:36 /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 mi10:48:3322:457:1922:45
7:19
#10598
10K
6.21 mi11:11:4345:557:2323:10
7:27
#11163
15K
9.32 mi11:34:351:08:477:2322:52
7:22
#10883
20K
12.43 mi11:57:451:31:577:2423:10
7:27
#10758
Half
13.11 mi12:02:481:37:007:245:03
7:24
#10760
25K
15.53 mi12:20:521:55:047:2418:04
7:27
#10521
30K
18.64 mi12:44:352:18:477:2723:43
7:38
#10103
20M
20.00 mi12:55:022:29:147:2810:27
7:41
#9884
21M
21.00 mi13:03:022:37:147:298:00
8:00
#9710
35K
21.75 mi13:11:002:45:127:367:58
10:39
#10575
23M
23.00 mi13:20:322:54:447:369:32
7:37
#10326
24M
24.00 mi13:27:563:02:087:357:24
7:24
#10133
40K
24.85 mi13:34:193:08:317:356:23
7:28
#9943
25.2M
25.20 mi13:37:363:11:487:373:17
9:31
#10033
Finish
26.22 mi13:45:063:19:187:367:30
7:22
#9928
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi105982088208810508(Top 37%)2124(Top 17%)2124(Top 39%)
10K6.21 mi3.10 mi11163-5652379-2912379-29111692(Top 41%)2660(Top 22%)2660(Top 49%)
15K9.32 mi3.11 mi10883+2802260+1192260+11910508(Top 37%)2124(Top 17%)2124(Top 39%)
20K12.43 mi3.11 mi10758+1252220+402220+4010404(Top 37%)2155(Top 18%)2155(Top 39%)
Half13.11 mi0.68 mi10760-22225-52225-510951(Top 39%)2393(Top 20%)2393(Top 44%)
25K15.53 mi2.42 mi10521+2392141+842141+849569(Top 34%)1911(Top 16%)1911(Top 35%)
30K18.64 mi3.11 mi10103+4182014+1272014+1278718(Top 31%)1707(Top 14%)1707(Top 31%)
20M20.00 mi1.36 mi9884+2191934+801934+808315(Top 29%)1679(Top 14%)1679(Top 31%)
21M21.00 mi1.00 mi9710+1741887+471887+477377(Top 26%)1472(Top 12%)1472(Top 27%)
35K21.75 mi0.75 mi10575-8652349-4622349-46223480(Top 83%)9789(Top 80%)9789(Top 179%)
23M23.00 mi1.25 mi10326+2492274+752274+757372(Top 26%)1571(Top 13%)1571(Top 29%)
24M24.00 mi1.00 mi10133+1932207+672207+677086(Top 25%)1500(Top 12%)1500(Top 27%)
40K24.85 mi0.85 mi9943+1902148+592148+596648(Top 23%)1413(Top 12%)1413(Top 26%)
25.2M25.20 mi0.35 mi10033-902209-612209-6114698(Top 52%)5368(Top 44%)5368(Top 98%)
Finish26.22 mi1.02 mi9928+1052184+252184+258229(Top 29%)2165(Top 18%)2165(Top 40%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21story building
+97ft-345ft

Overall

10508

Females

2124

F18-39

2124

5K→10K

3.1 - 6.2 mi

Top 41%
×5story building
+79ft-138ft

Overall

11692

Females

2660

F18-39

2660

10K→15K

6.2 - 9.3 mi

Top 37%
×3story building
+67ft-78ft

Overall

10508

Females

2124

F18-39

2124

15K→20K

9.3 - 12.4 mi

Top 37%
×5story building
+106ft-86ft

Overall

10404

Females

2155

F18-39

2155

20K→Half

12.4 - 13.1 mi

Top 39%
×2story building
+19ft-37ft

Overall

10951

Females

2393

F18-39

2393

Half→25K

13.1 - 15.5 mi

Top 34%
×4story building
+66ft-88ft

Overall

9569

Females

1911

F18-39

1911

25K→30K

15.5 - 18.6 mi

Top 31%
×9story building
+181ft-148ft

Overall

8718

Females

1707

F18-39

1707

30K→20M

18.6 - 20.0 mi

Top 29%
×5story building
+64ft-50ft

Overall

8315

Females

1679

F18-39

1679

20M→21M

20.0 - 21.0 mi

Top 26%
×8story building
+106ft-24ft

Overall

7377

Females

1472

F18-39

1472

21M→35K

21.0 - 21.8 mi

Top 83%
×7story building
+17ft-86ft

Overall

23480

Females

9789

F18-39

9789

35K→23M

21.8 - 23.0 mi

Top 26%
×5story building
+23ft-63ft

Overall

7372

Females

1571

F18-39

1571

23M→24M

23.0 - 24.0 mi

Top 25%
×6story building
+12ft-82ft

Overall

7086

Females

1500

F18-39

1500

24M→40K

24.0 - 24.9 mi

Top 23%
×1story
+6ft-20ft

Overall

6648

Females

1413

F18-39

1413

40K→25.2M

24.9 - 25.2 mi

Top 52%
×1story
+13ft-16ft

Overall

14698

Females

5368

F18-39

5368

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2story building
+22ft-21ft

Overall

8229

Females

2165

F18-39

2165

Passing Analysis

Category:
Athletes Passed
2650*
Passed By
1975
Net Change
+670
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10598
5K → 10K76641-565#10598#11163
10K → 15K33656+280#11163#10883
15K → 20K228103+125#10883#10758
20K → Half3234-2#10758#10760
Half → 25K28950+239#10760#10521
25K → 30K46243+418#10521#10103
30K → 20M233*14+219#10103#9884
20M → 21M19319+174#9884#9710
21M → 35K1864-865#9710#10575
35K → 23M26314+249#10575#10326
23M → 24M1974+193#10326#10133
24M → 40K201*11+190#10133#9943
40K → 25.2M16104-90#9943#10033
25.2M → Finish123*18+105#10033#9928
TOTALS2650*1975+670

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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