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BOSTON MARATHON 2025

Sa Na

Bib: 20412•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F40-44)
#0 / 1718
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
9:31/mi
29:35
↑ 97↓ 3451.5%
10K· 6.21 mi
9:20/mi
58:35
↑ 79↓ 1380.4%
15K· 9.32 mi
9:21/mi
1:27:39
↑ 67↓ 78
20K· 12.43 mi
9:31/mi
1:57:14
↑ 106↓ 860.1%
Half· 13.11 mi
9:27/mi
2:03:41
↑ 19↓ 370.5%
25K· 15.53 mi
10:10/mi
2:28:21
↑ 66↓ 880.2%
30K· 18.64 mi
10:42/mi
3:01:36
↑ 181↓ 1480.2%
20M
10:03/mi
3:15:16
↑ 64↓ 500.2%
21M
11:26/mi
3:26:42
↑ 106↓ 241.6%
35K· 21.75 mi
9:40/mi
3:33:56
↑ 17↓ 861.7%
23M
10:33/mi
3:47:08
↑ 23↓ 630.6%
24M
10:18/mi
3:57:26
↓ 821.3%
40K· 24.85 mi
10:41/mi
4:06:34
↓ 200.3%
25.2M
11:50/mi
4:10:39
↑ 13↓ 160.2%
Finish· 26.22 mi
10:20/mi
4:21:11
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:03:41
Pace9:26 /mi
2nd Half
Distance13.11 mi
Time2:17:30
Pace10:29 /mi
📊Positive Split: 11.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:0429:359:3129:35
9:31
-
10K
6.21 mi11:53:0458:359:2629:00
9:20
-0:11
15K
9.32 mi12:22:081:27:399:2429:04
9:21
+0:01
20K
12.43 mi12:51:431:57:149:2629:35
9:31
+0:10
Half
13.11 mi12:58:102:03:419:266:27
9:27
-0:04
25K
15.53 mi13:22:502:28:219:3324:40
10:10
+0:43
30K
18.64 mi13:56:053:01:369:4533:15
10:42
+0:32
20M
20.00 mi14:09:453:15:169:4613:40
10:03
-0:39
21M
21.00 mi14:21:113:26:429:5111:26
11:26
+1:23
35K
21.75 mi14:28:253:33:569:507:14
9:40
-1:46
23M
23.00 mi14:41:373:47:089:5313:12
10:33
+0:53
24M
24.00 mi14:51:553:57:269:5410:18
10:18
-0:15
40K
24.85 mi15:01:034:06:349:559:08
10:41
+0:23
25.2M
25.20 mi15:05:084:10:399:574:05
11:50
+1:09
Finish
26.22 mi15:15:404:21:119:5810:32
10:20
-1:30

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

9:20 /mi

Average Pace

9:58 /mi

Slowest Pace

11:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:10:55

50% of race

Time at Steady Pace

59:10

23% of race

Time at Slower Pace

1:11:06

27% of race

Average Pace: 9:58 /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 mi11:24:0429:359:3129:35
9:31
#24320
10K
6.21 mi11:53:0458:359:2629:00
9:20
#23967
15K
9.32 mi12:22:081:27:399:2429:04
9:21
#23767
20K
12.43 mi12:51:431:57:149:2629:35
9:31
#23582
Half
13.11 mi12:58:102:03:419:266:27
9:27
#23574
25K
15.53 mi13:22:502:28:219:3324:40
10:10
#23560
30K
18.64 mi13:56:053:01:369:4533:15
10:42
#23511
20M
20.00 mi14:09:453:15:169:4613:40
10:03
#23318
21M
21.00 mi14:21:113:26:429:5111:26
11:26
#23271
35K
21.75 mi14:28:253:33:569:507:14
9:40
#23180
23M
23.00 mi14:41:373:47:089:5313:12
10:33
#23127
24M
24.00 mi14:51:553:57:269:5410:18
10:18
#23080
40K
24.85 mi15:01:034:06:349:559:08
10:41
#23043
25.2M
25.20 mi15:05:084:10:399:574:05
11:50
#23058
Finish
26.22 mi15:15:404:21:119:5810:32
10:20
#23080
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi243209861986123368(Top 82%)9297(Top 76%)9297(Top 541%)
10K6.21 mi3.10 mi23967+3539668+1939668+19323639(Top 83%)9484(Top 78%)9484(Top 552%)
15K9.32 mi3.11 mi23767+2009554+1149554+11423368(Top 82%)9297(Top 76%)9297(Top 541%)
20K12.43 mi3.11 mi23582+1859452+1029452+10222979(Top 81%)9137(Top 75%)9137(Top 532%)
Half13.11 mi0.68 mi23574+89447+59447+523455(Top 83%)9407(Top 77%)9407(Top 548%)
25K15.53 mi2.42 mi23560+149458-119458-1123675(Top 83%)9576(Top 78%)9576(Top 557%)
30K18.64 mi3.11 mi23511+499461-39461-323409(Top 82%)9554(Top 78%)9554(Top 556%)
20M20.00 mi1.36 mi23318+1939373+889373+8821166(Top 75%)8456(Top 69%)8456(Top 492%)
21M21.00 mi1.00 mi23271+479374-19374-122492(Top 79%)9236(Top 76%)9236(Top 538%)
35K21.75 mi0.75 mi23180+919328+469328+4620934(Top 74%)8477(Top 69%)8477(Top 493%)
23M23.00 mi1.25 mi23127+539337-99337-922138(Top 78%)9140(Top 75%)9140(Top 532%)
24M24.00 mi1.00 mi23080+479333+49333+422261(Top 78%)9268(Top 76%)9268(Top 539%)
40K24.85 mi0.85 mi23043+379329+49329+422411(Top 79%)9417(Top 77%)9417(Top 548%)
25.2M25.20 mi0.35 mi23058-159340-119340-1122919(Top 81%)9619(Top 79%)9619(Top 560%)
Finish26.22 mi1.02 mi23080-229364-249364-2423885(Top 84%)10113(Top 83%)10113(Top 589%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21story building
+97ft-345ft

Overall

23368

Females

9297

F40-44

9297

5K→10K

3.1 - 6.2 mi

Top 83%
×5story building
+79ft-138ft

Overall

23639

Females

9484

F40-44

9484

10K→15K

6.2 - 9.3 mi

Top 82%
×3story building
+67ft-78ft

Overall

23368

Females

9297

F40-44

9297

15K→20K

9.3 - 12.4 mi

Top 81%
×5story building
+106ft-86ft

Overall

22979

Females

9137

F40-44

9137

20K→Half

12.4 - 13.1 mi

Top 83%
×2story building
+19ft-37ft

Overall

23455

Females

9407

F40-44

9407

Half→25K

13.1 - 15.5 mi

Top 83%
×4story building
+66ft-88ft

Overall

23675

Females

9576

F40-44

9576

25K→30K

15.5 - 18.6 mi

Top 82%
×9story building
+181ft-148ft

Overall

23409

Females

9554

F40-44

9554

30K→20M

18.6 - 20.0 mi

Top 75%
×5story building
+64ft-50ft

Overall

21166

Females

8456

F40-44

8456

20M→21M

20.0 - 21.0 mi

Top 79%
×8story building
+106ft-24ft

Overall

22492

Females

9236

F40-44

9236

21M→35K

21.0 - 21.8 mi

Top 74%
×7story building
+17ft-86ft

Overall

20934

Females

8477

F40-44

8477

35K→23M

21.8 - 23.0 mi

Top 78%
×5story building
+23ft-63ft

Overall

22138

Females

9140

F40-44

9140

23M→24M

23.0 - 24.0 mi

Top 78%
×6story building
+12ft-82ft

Overall

22261

Females

9268

F40-44

9268

24M→40K

24.0 - 24.9 mi

Top 79%
×1story
+6ft-20ft

Overall

22411

Females

9417

F40-44

9417

40K→25.2M

24.9 - 25.2 mi

Top 81%
×1story
+13ft-16ft

Overall

22919

Females

9619

F40-44

9619

25.2M→Finish

25.2 - 26.2 mi

Top 84%
×2story building
+22ft-21ft

Overall

23885

Females

10113

F40-44

10113

Passing Analysis

Category:
Athletes Passed
1948
Passed By
708
Net Change
+1240
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24320
5K → 10K45198+353#24320#23967
10K → 15K26666+200#23967#23767
15K → 20K23752+185#23767#23582
20K → Half2517+8#23582#23574
Half → 25K136122+14#23574#23560
25K → 30K175126+49#23560#23511
30K → 20M1941+193#23511#23318
20M → 21M8942+47#23318#23271
21M → 35K954+91#23271#23180
35K → 23M10047+53#23180#23127
23M → 24M7528+47#23127#23080
24M → 40K6629+37#23080#23043
40K → 25.2M924-15#23043#23058
25.2M → Finish3052-22#23058#23080
TOTALS1948708+1240
📊

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