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BOSTON MARATHON 2025

Nenuska Key

Bib: 28942•F

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F50-54)
#0 / 1303
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
10:29/mi
32:34
↑ 97↓ 3451.5%
10K· 6.21 mi
10:34/mi
1:05:24
↑ 79↓ 1380.4%
15K· 9.32 mi
10:44/mi
1:38:44
↑ 67↓ 78
20K· 12.43 mi
11:57/mi
2:15:53
↑ 106↓ 860.1%
Half· 13.11 mi
10:38/mi
2:23:08
↑ 19↓ 370.5%
25K· 15.53 mi
11:49/mi
2:51:48
↑ 66↓ 880.2%
30K· 18.64 mi
12:05/mi
3:29:19
↑ 181↓ 1480.2%
20M
12:44/mi
3:46:37
↑ 64↓ 500.2%
21M
12:58/mi
3:59:35
↑ 106↓ 241.6%
35K· 21.75 mi
11:40/mi
4:08:19
↑ 17↓ 861.7%
23M
12:02/mi
4:23:23
↑ 23↓ 630.6%
24M
11:55/mi
4:35:18
↓ 821.3%
40K· 24.85 mi
12:24/mi
4:45:54
↓ 200.3%
25.2M
13:06/mi
4:50:25
↑ 13↓ 160.2%
Finish· 26.22 mi
11:02/mi
5:01:40
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:23:08
Pace10:55 /mi
2nd Half
Distance13.11 mi
Time2:38:32
Pace12:06 /mi
📊Positive Split: 10.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:58:2632:3410:2932:34
10:29
-
10K
6.21 mi12:31:161:05:2410:3232:50
10:34
+0:05
15K
9.32 mi13:04:361:38:4410:3633:20
10:44
+0:10
20K
12.43 mi13:41:452:15:5310:5637:09
11:57
+1:13
Half
13.11 mi13:49:002:23:0810:557:15
10:38
-1:19
25K
15.53 mi14:17:402:51:4811:0428:40
11:49
+1:11
30K
18.64 mi14:55:113:29:1911:1437:31
12:05
+0:16
20M
20.00 mi15:12:293:46:3711:2017:18
12:44
+0:39
21M
21.00 mi15:25:273:59:3511:2512:58
12:58
+0:14
35K
21.75 mi15:34:114:08:1911:258:44
11:40
-1:18
23M
23.00 mi15:49:154:23:2311:2715:04
12:02
+0:22
24M
24.00 mi16:01:104:35:1811:2811:55
11:55
-0:07
40K
24.85 mi16:11:464:45:5411:3010:36
12:24
+0:29
25.2M
25.20 mi16:16:174:50:2511:314:31
13:06
+0:42
Finish
26.22 mi16:27:325:01:4011:3111:15
11:02
-2:04

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

10:29 /mi

Average Pace

11:31 /mi

Slowest Pace

13:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:57:14

39% of race

Time at Steady Pace

2:19:03

46% of race

Time at Slower Pace

45:23

15% of race

Average Pace: 11:30 /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 mi11:58:2632:3410:2932:34
10:29
#26702
10K
6.21 mi12:31:161:05:2410:3232:50
10:34
#26536
15K
9.32 mi13:04:361:38:4410:3633:20
10:44
#26447
20K
12.43 mi13:41:452:15:5310:5637:09
11:57
#26687
Half
13.11 mi13:49:002:23:0810:557:15
10:38
#26646
25K
15.53 mi14:17:402:51:4811:0428:40
11:49
#26585
30K
18.64 mi14:55:113:29:1911:1437:31
12:05
#26430
20M
20.00 mi15:12:293:46:3711:2017:18
12:44
#26427
21M
21.00 mi15:25:273:59:3511:2512:58
12:58
#26358
35K
21.75 mi15:34:114:08:1911:258:44
11:40
#26321
23M
23.00 mi15:49:154:23:2311:2715:04
12:02
#26265
24M
24.00 mi16:01:104:35:1811:2811:55
11:55
#26241
40K
24.85 mi16:11:464:45:5411:3010:36
12:24
#26223
25.2M
25.20 mi16:16:174:50:2511:314:31
13:06
#26217
Finish
26.22 mi16:27:325:01:4011:3111:15
11:02
#26213
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi26702111571115726295(Top 93%)10941(Top 89%)10941(Top 840%)
10K6.21 mi3.10 mi26536+16611070+8711070+8726385(Top 93%)11004(Top 90%)11004(Top 845%)
15K9.32 mi3.11 mi26447+8911024+4611024+4626295(Top 93%)10941(Top 89%)10941(Top 840%)
20K12.43 mi3.11 mi26687-24011170-14611170-14627071(Top 95%)11434(Top 94%)11434(Top 878%)
Half13.11 mi0.68 mi26646+4111148+2211148+2225969(Top 91%)10805(Top 88%)10805(Top 829%)
25K15.53 mi2.42 mi26585+6111131+1711131+1726236(Top 92%)10993(Top 90%)10993(Top 844%)
30K18.64 mi3.11 mi26430+15511062+6911062+6925690(Top 90%)10781(Top 88%)10781(Top 827%)
20M20.00 mi1.36 mi26427+311077-1511077-1526169(Top 92%)11102(Top 91%)11102(Top 852%)
21M21.00 mi1.00 mi26358+6911049+2811049+2824993(Top 88%)10569(Top 86%)10569(Top 811%)
35K21.75 mi0.75 mi26321+3711041+811041+825349(Top 89%)10770(Top 88%)10770(Top 827%)
23M23.00 mi1.25 mi26265+5611019+2211019+2225154(Top 89%)10679(Top 87%)10679(Top 820%)
24M24.00 mi1.00 mi26241+2411020-111020-125558(Top 90%)10909(Top 89%)10909(Top 837%)
40K24.85 mi0.85 mi26223+1811011+911011+925507(Top 90%)10916(Top 89%)10916(Top 838%)
25.2M25.20 mi0.35 mi26217+611008+311008+325149(Top 89%)10771(Top 88%)10771(Top 827%)
Finish26.22 mi1.02 mi26213+411012-411012-425429(Top 90%)10872(Top 89%)10872(Top 834%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 93%
×21story building
+97ft-345ft

Overall

26295

Females

10941

F50-54

10941

5K→10K

3.1 - 6.2 mi

Top 93%
×5story building
+79ft-138ft

Overall

26385

Females

11004

F50-54

11004

10K→15K

6.2 - 9.3 mi

Top 93%
×3story building
+67ft-78ft

Overall

26295

Females

10941

F50-54

10941

15K→20K

9.3 - 12.4 mi

Top 95%
×5story building
+106ft-86ft

Overall

27071

Females

11434

F50-54

11434

20K→Half

12.4 - 13.1 mi

Top 91%
×2story building
+19ft-37ft

Overall

25969

Females

10805

F50-54

10805

Half→25K

13.1 - 15.5 mi

Top 92%
×4story building
+66ft-88ft

Overall

26236

Females

10993

F50-54

10993

25K→30K

15.5 - 18.6 mi

Top 90%
×9story building
+181ft-148ft

Overall

25690

Females

10781

F50-54

10781

30K→20M

18.6 - 20.0 mi

Top 92%
×5story building
+64ft-50ft

Overall

26169

Females

11102

F50-54

11102

20M→21M

20.0 - 21.0 mi

Top 88%
×8story building
+106ft-24ft

Overall

24993

Females

10569

F50-54

10569

21M→35K

21.0 - 21.8 mi

Top 89%
×7story building
+17ft-86ft

Overall

25349

Females

10770

F50-54

10770

35K→23M

21.8 - 23.0 mi

Top 89%
×5story building
+23ft-63ft

Overall

25154

Females

10679

F50-54

10679

23M→24M

23.0 - 24.0 mi

Top 90%
×6story building
+12ft-82ft

Overall

25558

Females

10909

F50-54

10909

24M→40K

24.0 - 24.9 mi

Top 90%
×1story
+6ft-20ft

Overall

25507

Females

10916

F50-54

10916

40K→25.2M

24.9 - 25.2 mi

Top 89%
×1story
+13ft-16ft

Overall

25149

Females

10771

F50-54

10771

25.2M→Finish

25.2 - 26.2 mi

Top 90%
×2story building
+22ft-21ft

Overall

25429

Females

10872

F50-54

10872

Passing Analysis

Category:
Athletes Passed
1177
Passed By
688
Net Change
+489
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26702
5K → 10K269103+166#26702#26536
10K → 15K16677+89#26536#26447
15K → 20K47287-240#26447#26687
20K → Half465+41#26687#26646
Half → 25K11352+61#26646#26585
25K → 30K18732+155#26585#26430
30K → 20M4845+3#26430#26427
20M → 21M7910+69#26427#26358
21M → 35K436+37#26358#26321
35K → 23M6610+56#26321#26265
23M → 24M3713+24#26265#26241
24M → 40K3618+18#26241#26223
40K → 25.2M126+6#26223#26217
25.2M → Finish2824+4#26217#26213
TOTALS1177688+489
📊

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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Questions or issues regarding timing data?

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing