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BOSTON MARATHON 2025

Nikki Butters

Bib: 13976•F

ON

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 39%
Gender (Female)
#0 / 12228
Top 23%
Division (F18-39)
#0 / 5469
Top 39%
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
7:47/mi
24:10
↑ 97↓ 3451.5%
10K· 6.21 mi
7:48/mi
48:23
↑ 79↓ 1380.4%
15K· 9.32 mi
7:44/mi
1:12:25
↑ 67↓ 78
20K· 12.43 mi
7:50/mi
1:36:45
↑ 106↓ 860.1%
Half· 13.11 mi
7:46/mi
1:42:03
↑ 19↓ 370.5%
25K· 15.53 mi
7:49/mi
2:00:59
↑ 66↓ 880.2%
30K· 18.64 mi
7:49/mi
2:25:17
↑ 181↓ 1480.2%
20M
7:37/mi
2:35:38
↑ 64↓ 500.2%
21M
8:08/mi
2:43:46
↑ 106↓ 241.6%
35K· 21.75 mi
7:12/mi
2:49:09
↑ 17↓ 861.7%
23M
7:41/mi
2:58:46
↑ 23↓ 630.6%
24M
7:23/mi
3:06:09
↓ 821.3%
40K· 24.85 mi
7:36/mi
3:12:39
↓ 200.3%
25.2M
8:19/mi
3:15:31
↑ 13↓ 160.2%
Finish· 26.22 mi
7:20/mi
3:22:59
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:42:03
Pace7:47 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:40:56
Pace7:42 /mi
📊Negative Split: 1.1% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:1824:107:4724:10
7:47
-
10K
6.21 mi11:19:3148:237:4724:13
7:48
+0:01
15K
9.32 mi11:43:331:12:257:4624:02
7:44
-0:04
20K
12.43 mi12:07:531:36:457:4724:20
7:50
+0:06
Half
13.11 mi12:13:111:42:037:475:18
7:46
-0:04
25K
15.53 mi12:32:072:00:597:4718:56
7:49
+0:03
30K
18.64 mi12:56:252:25:177:4824:18
7:49
0:00
20M
20.00 mi13:06:462:35:387:4710:21
7:37
-0:12
21M
21.00 mi13:14:542:43:467:488:08
8:08
+0:31
35K
21.75 mi13:20:172:49:097:475:23
7:12
-0:56
23M
23.00 mi13:29:542:58:467:469:37
7:41
+0:29
24M
24.00 mi13:37:173:06:097:457:23
7:23
-0:18
40K
24.85 mi13:43:473:12:397:456:30
7:36
+0:13
25.2M
25.20 mi13:46:393:15:317:462:52
8:19
+0:43
Finish
26.22 mi13:54:073:22:597:457:28
7:20
-0:59

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

7:12 /mi

Average Pace

7:45 /mi

Slowest Pace

8:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:11:59

95% of race

Time at Steady Pace

11:00

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:44 /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 mi10:55:1824:107:4724:10
7:47
#14617
10K
6.21 mi11:19:3148:237:4724:13
7:48
#14652
15K
9.32 mi11:43:331:12:257:4624:02
7:44
#14367
20K
12.43 mi12:07:531:36:457:4724:20
7:50
#14129
Half
13.11 mi12:13:111:42:037:475:18
7:46
#14117
25K
15.53 mi12:32:072:00:597:4718:56
7:49
#13791
30K
18.64 mi12:56:252:25:177:4824:18
7:49
#13024
20M
20.00 mi13:06:462:35:387:4710:21
7:37
#12575
21M
21.00 mi13:14:542:43:467:488:08
8:08
#12298
35K
21.75 mi13:20:172:49:097:475:23
7:12
#12052
23M
23.00 mi13:29:542:58:467:469:37
7:41
#11739
24M
24.00 mi13:37:173:06:097:457:23
7:23
#11457
40K
24.85 mi13:43:473:12:397:456:30
7:36
#11267
25.2M
25.20 mi13:46:393:15:317:462:52
8:19
#11185
Finish
26.22 mi13:54:073:22:597:457:28
7:20
#11026
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi146174287428713822(Top 49%)3908(Top 32%)3908(Top 71%)
10K6.21 mi3.10 mi14652-354334-474334-4714749(Top 52%)4387(Top 36%)4387(Top 80%)
15K9.32 mi3.11 mi14367+2854180+1544180+15413822(Top 49%)3908(Top 32%)3908(Top 71%)
20K12.43 mi3.11 mi14129+2384079+1014079+10113529(Top 48%)3829(Top 31%)3829(Top 70%)
Half13.11 mi0.68 mi14117+124070+94070+913989(Top 49%)4022(Top 33%)4022(Top 74%)
25K15.53 mi2.42 mi13791+3263923+1473923+14712438(Top 44%)3354(Top 27%)3354(Top 61%)
30K18.64 mi3.11 mi13024+7673566+3573566+35710114(Top 36%)2339(Top 19%)2339(Top 43%)
20M20.00 mi1.36 mi12575+4493348+2183348+2187840(Top 28%)1491(Top 12%)1491(Top 27%)
21M21.00 mi1.00 mi12298+2773231+1173231+1178205(Top 29%)1820(Top 15%)1820(Top 33%)
35K21.75 mi0.75 mi12052+2463124+1073124+1076639(Top 23%)1163(Top 10%)1163(Top 21%)
23M23.00 mi1.25 mi11739+3133000+1243000+1247816(Top 28%)1753(Top 14%)1753(Top 32%)
24M24.00 mi1.00 mi11457+2822893+1072893+1076992(Top 25%)1462(Top 12%)1462(Top 27%)
40K24.85 mi0.85 mi11267+1902830+632830+637484(Top 26%)1762(Top 14%)1762(Top 32%)
25.2M25.20 mi0.35 mi11185+822804+262804+267805(Top 27%)1994(Top 16%)1994(Top 36%)
Finish26.22 mi1.02 mi11026+1592755+492755+498004(Top 28%)2079(Top 17%)2079(Top 38%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21story building
+97ft-345ft

Overall

13822

Females

3908

F18-39

3908

5K→10K

3.1 - 6.2 mi

Top 52%
×5story building
+79ft-138ft

Overall

14749

Females

4387

F18-39

4387

10K→15K

6.2 - 9.3 mi

Top 49%
×3story building
+67ft-78ft

Overall

13822

Females

3908

F18-39

3908

15K→20K

9.3 - 12.4 mi

Top 48%
×5story building
+106ft-86ft

Overall

13529

Females

3829

F18-39

3829

20K→Half

12.4 - 13.1 mi

Top 49%
×2story building
+19ft-37ft

Overall

13989

Females

4022

F18-39

4022

Half→25K

13.1 - 15.5 mi

Top 44%
×4story building
+66ft-88ft

Overall

12438

Females

3354

F18-39

3354

25K→30K

15.5 - 18.6 mi

Top 36%
×9story building
+181ft-148ft

Overall

10114

Females

2339

F18-39

2339

30K→20M

18.6 - 20.0 mi

Top 28%
×5story building
+64ft-50ft

Overall

7840

Females

1491

F18-39

1491

20M→21M

20.0 - 21.0 mi

Top 29%
×8story building
+106ft-24ft

Overall

8205

Females

1820

F18-39

1820

21M→35K

21.0 - 21.8 mi

Top 23%
×7story building
+17ft-86ft

Overall

6639

Females

1163

F18-39

1163

35K→23M

21.8 - 23.0 mi

Top 28%
×5story building
+23ft-63ft

Overall

7816

Females

1753

F18-39

1753

23M→24M

23.0 - 24.0 mi

Top 25%
×6story building
+12ft-82ft

Overall

6992

Females

1462

F18-39

1462

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

7484

Females

1762

F18-39

1762

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7805

Females

1994

F18-39

1994

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2story building
+22ft-21ft

Overall

8004

Females

2079

F18-39

2079

Passing Analysis

Category:
Athletes Passed
4178
Passed By
587
Net Change
+3591
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14617
5K → 10K282317-35#14617#14652
10K → 15K35772+285#14652#14367
15K → 20K33092+238#14367#14129
20K → Half3826+12#14129#14117
Half → 25K35933+326#14117#13791
25K → 30K7747+767#13791#13024
30K → 20M4534+449#13024#12575
20M → 21M2847+277#12575#12298
21M → 35K2460+246#12298#12052
35K → 23M3185+313#12052#11739
23M → 24M2842+282#11739#11457
24M → 40K1966+190#11457#11267
40K → 25.2M875+82#11267#11185
25.2M → Finish17011+159#11185#11026
TOTALS4178587+3591
📊

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