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BOSTON MARATHON 2025

Natasha Nolt

Bib: 24654•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 (F55-59)
#0 / 994
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
8:36/mi
26:44
↑ 97↓ 3451.5%
10K· 6.21 mi
8:33/mi
53:17
↑ 79↓ 1380.4%
15K· 9.32 mi
8:42/mi
1:20:20
↑ 67↓ 78
20K· 12.43 mi
8:54/mi
1:48:00
↑ 106↓ 860.1%
Half· 13.11 mi
8:37/mi
1:53:53
↑ 19↓ 370.5%
25K· 15.53 mi
9:14/mi
2:16:16
↑ 66↓ 880.2%
30K· 18.64 mi
9:50/mi
2:46:48
↑ 181↓ 1480.2%
20M
9:55/mi
3:00:17
↑ 64↓ 500.2%
21M
10:48/mi
3:11:05
↑ 106↓ 241.6%
35K· 21.75 mi
10:34/mi
3:18:59
↑ 17↓ 861.7%
23M
10:18/mi
3:31:53
↑ 23↓ 630.6%
24M
9:53/mi
3:41:46
↓ 821.3%
40K· 24.85 mi
10:15/mi
3:50:32
↓ 200.3%
25.2M
11:48/mi
3:54:36
↑ 13↓ 160.2%
Finish· 26.22 mi
9:22/mi
4:04:09
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:53
Pace8:41 /mi
2nd Half
Distance13.11 mi
Time2:10:16
Pace9:56 /mi
📊Positive Split: 14.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:27:2826:448:3626:44
8:36
-
10K
6.21 mi11:54:0153:178:3526:33
8:33
-0:03
15K
9.32 mi12:21:041:20:208:3727:03
8:42
+0:09
20K
12.43 mi12:48:441:48:008:4127:40
8:54
+0:12
Half
13.11 mi12:54:371:53:538:415:53
8:37
-0:17
25K
15.53 mi13:17:002:16:168:4622:23
9:14
+0:37
30K
18.64 mi13:47:322:46:488:5730:32
9:50
+0:36
20M
20.00 mi14:01:013:00:179:0113:29
9:55
+0:05
21M
21.00 mi14:11:493:11:059:0610:48
10:48
+0:53
35K
21.75 mi14:19:433:18:599:097:54
10:34
-0:14
23M
23.00 mi14:32:373:31:539:1312:54
10:18
-0:16
24M
24.00 mi14:42:303:41:469:149:53
9:53
-0:25
40K
24.85 mi14:51:163:50:329:178:46
10:15
+0:22
25.2M
25.20 mi14:55:203:54:369:194:04
11:48
+1:33
Finish
26.22 mi15:04:534:04:099:199:33
9:22
-2:26

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

8:33 /mi

Average Pace

9:19 /mi

Slowest Pace

11:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:25:49

60% of race

Time at Steady Pace

1:02:40

26% of race

Time at Slower Pace

35:40

15% of race

Average Pace: 9:19 /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 mi11:27:2826:448:3626:44
8:36
#20495
10K
6.21 mi11:54:0153:178:3526:33
8:33
#20276
15K
9.32 mi12:21:041:20:208:3727:03
8:42
#20306
20K
12.43 mi12:48:441:48:008:4127:40
8:54
#20358
Half
13.11 mi12:54:371:53:538:415:53
8:37
#20337
25K
15.53 mi13:17:002:16:168:4622:23
9:14
#20482
30K
18.64 mi13:47:322:46:488:5730:32
9:50
#20616
20M
20.00 mi14:01:013:00:179:0113:29
9:55
#20623
21M
21.00 mi14:11:493:11:059:0610:48
10:48
#20636
35K
21.75 mi14:19:433:18:599:097:54
10:34
#20802
23M
23.00 mi14:32:373:31:539:1312:54
10:18
#20885
24M
24.00 mi14:42:303:41:469:149:53
9:53
#20903
40K
24.85 mi14:51:163:50:329:178:46
10:15
#20913
25.2M
25.20 mi14:55:203:54:369:194:04
11:48
#20930
Finish
26.22 mi15:04:534:04:099:199:33
9:22
#20913
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi204957803780320540(Top 72%)7739(Top 63%)7739(Top 779%)
10K6.21 mi3.10 mi20276+2197636+1677636+16720080(Top 71%)7512(Top 61%)7512(Top 756%)
15K9.32 mi3.11 mi20306-307648-127648-1220540(Top 72%)7739(Top 63%)7739(Top 779%)
20K12.43 mi3.11 mi20358-527680-327680-3220517(Top 72%)7785(Top 64%)7785(Top 783%)
Half13.11 mi0.68 mi20337+217669+117669+1119999(Top 70%)7487(Top 61%)7487(Top 753%)
25K15.53 mi2.42 mi20482-1457763-947763-9420916(Top 74%)8047(Top 66%)8047(Top 810%)
30K18.64 mi3.11 mi20616-1347878-1157878-11521082(Top 74%)8274(Top 68%)8274(Top 832%)
20M20.00 mi1.36 mi20623-77904-267904-2620682(Top 73%)8177(Top 67%)8177(Top 823%)
21M21.00 mi1.00 mi20636-137926-227926-2220849(Top 73%)8373(Top 68%)8373(Top 842%)
35K21.75 mi0.75 mi20802-1668034-1088034-10823300(Top 82%)9703(Top 79%)9703(Top 976%)
23M23.00 mi1.25 mi20885-838099-658099-6521427(Top 75%)8772(Top 72%)8772(Top 882%)
24M24.00 mi1.00 mi20903-188128-298128-2921011(Top 74%)8604(Top 70%)8604(Top 866%)
40K24.85 mi0.85 mi20913-108152-248152-2421252(Top 75%)8792(Top 72%)8792(Top 885%)
25.2M25.20 mi0.35 mi20930-178171-198171-1922781(Top 80%)9549(Top 78%)9549(Top 961%)
Finish26.22 mi1.02 mi20913+178181-108181-1020688(Top 73%)8493(Top 69%)8493(Top 854%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21story building
+97ft-345ft

Overall

20540

Females

7739

F55-59

7739

5K→10K

3.1 - 6.2 mi

Top 71%
×5story building
+79ft-138ft

Overall

20080

Females

7512

F55-59

7512

10K→15K

6.2 - 9.3 mi

Top 72%
×3story building
+67ft-78ft

Overall

20540

Females

7739

F55-59

7739

15K→20K

9.3 - 12.4 mi

Top 72%
×5story building
+106ft-86ft

Overall

20517

Females

7785

F55-59

7785

20K→Half

12.4 - 13.1 mi

Top 70%
×2story building
+19ft-37ft

Overall

19999

Females

7487

F55-59

7487

Half→25K

13.1 - 15.5 mi

Top 74%
×4story building
+66ft-88ft

Overall

20916

Females

8047

F55-59

8047

25K→30K

15.5 - 18.6 mi

Top 74%
×9story building
+181ft-148ft

Overall

21082

Females

8274

F55-59

8274

30K→20M

18.6 - 20.0 mi

Top 73%
×5story building
+64ft-50ft

Overall

20682

Females

8177

F55-59

8177

20M→21M

20.0 - 21.0 mi

Top 73%
×8story building
+106ft-24ft

Overall

20849

Females

8373

F55-59

8373

21M→35K

21.0 - 21.8 mi

Top 82%
×7story building
+17ft-86ft

Overall

23300

Females

9703

F55-59

9703

35K→23M

21.8 - 23.0 mi

Top 75%
×5story building
+23ft-63ft

Overall

21427

Females

8772

F55-59

8772

23M→24M

23.0 - 24.0 mi

Top 74%
×6story building
+12ft-82ft

Overall

21011

Females

8604

F55-59

8604

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

21252

Females

8792

F55-59

8792

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

22781

Females

9549

F55-59

9549

25.2M→Finish

25.2 - 26.2 mi

Top 73%
×2story building
+22ft-21ft

Overall

20688

Females

8493

F55-59

8493

Passing Analysis

Category:
Athletes Passed
1549
Passed By
1967
Net Change
-418
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20495
5K → 10K419200+219#20495#20276
10K → 15K174204-30#20276#20306
15K → 20K164216-52#20306#20358
20K → Half4524+21#20358#20337
Half → 25K112257-145#20337#20482
25K → 30K186320-134#20482#20616
30K → 20M99106-7#20616#20623
20M → 21M87100-13#20623#20636
21M → 35K21187-166#20636#20802
35K → 23M68151-83#20802#20885
23M → 24M5068-18#20885#20903
24M → 40K5363-10#20903#20913
40K → 25.2M2037-17#20913#20930
25.2M → Finish5134+17#20930#20913
TOTALS15491967-418
📊

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