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BOSTON MARATHON 2025

Yan Ma

BC

Bib: 23379 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 39%
Masters (Masters Women)
#0 / 6759
Top 24%
Division (F60-64)
#0 / 624
Top 3%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
8:01/mi
24:53
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:57/mi
49:35
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:54/mi
1:14:09
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:04/mi
1:39:13
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:58/mi
1:44:39
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:07/mi
2:04:20
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:29/mi
2:30:40
↑ 181↓ 1480.2%
138 ft elev
20M
8:29/mi
2:42:12
↑ 64↓ 500.2%
148 ft elev
21M
9:11/mi
2:51:23
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
8:11/mi
2:57:30
↑ 17↓ 861.7%
156 ft elev
23M
8:43/mi
3:08:25
↑ 23↓ 630.6%
116 ft elev
24M
8:20/mi
3:16:45
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:29/mi
3:24:00
↓ 200.3%
20 ft elev
25.2M
9:11/mi
3:27:10
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:17/mi
3:35:36
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:39
Pace7:59 /mi
2nd Half
Distance13.11 mi
Time1:50:57
Pace8:28 /mi
📊Positive Split: 6.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:5224:538:0124:53
8:01
-
10K
6.21 mi11:46:3449:357:5924:42
7:57
-0:04
15K
9.32 mi12:11:081:14:097:5724:34
7:54
-0:03
20K
12.43 mi12:36:121:39:137:5925:04
8:04
+0:10
Half
13.11 mi12:41:381:44:397:595:26
7:58
-0:06
25K
15.53 mi13:01:192:04:208:0019:41
8:07
+0:09
30K
18.64 mi13:27:392:30:408:0526:20
8:29
+0:22
20M
20.00 mi13:39:112:42:128:0711:32
8:29
0:00
21M
21.00 mi13:48:222:51:238:109:11
9:11
+0:42
35K
21.75 mi13:54:292:57:308:106:07
8:11
-1:00
23M
23.00 mi14:05:243:08:258:1210:55
8:43
+0:32
24M
24.00 mi14:13:443:16:458:128:20
8:20
-0:23
40K
24.85 mi14:20:593:24:008:127:15
8:29
+0:09
25.2M
25.20 mi14:24:093:27:108:133:10
9:11
+0:42
Finish
26.22 mi14:32:353:35:368:148:26
8:17
-0:54

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

7:54 /mi

Average Pace

8:14 /mi

Slowest Pace

9:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:12:20

89% of race

Time at Steady Pace

23:16

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:13 /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 mi11:21:5224:538:0124:53
8:01
#16667
10K
6.21 mi11:46:3449:357:5924:42
7:57
#16345
15K
9.32 mi12:11:081:14:097:5724:34
7:54
#15976
20K
12.43 mi12:36:121:39:137:5925:04
8:04
#15803
Half
13.11 mi12:41:381:44:397:595:26
7:58
#15791
25K
15.53 mi13:01:192:04:208:0019:41
8:07
#15574
30K
18.64 mi13:27:392:30:408:0526:20
8:29
#15381
20M
20.00 mi13:39:112:42:128:0711:32
8:29
#15224
21M
21.00 mi13:48:222:51:238:109:11
9:11
#15112
35K
21.75 mi13:54:292:57:308:106:07
8:11
#15033
23M
23.00 mi14:05:243:08:258:1210:55
8:43
#14966
24M
24.00 mi14:13:443:16:458:128:20
8:20
#14869
40K
24.85 mi14:20:593:24:008:127:15
8:29
#14798
25.2M
25.20 mi14:24:093:27:108:133:10
9:11
#14756
Finish
26.22 mi14:32:353:35:368:148:26
8:17
#14724
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi16667555355531531447584758
10K6.21 mi3.10 mi16345+3225344+2095344+2091607951675167
15K9.32 mi3.11 mi15976+3695129+2155129+2151531447584758
20K12.43 mi3.11 mi15803+1735040+895040+891541348654865
Half13.11 mi0.68 mi15791+125029+115029+111565249724972
25K15.53 mi2.42 mi15574+2174926+1034926+1031477346294629
30K18.64 mi3.11 mi15381+1934879+474879+471460846854685
20M20.00 mi1.36 mi15224+1574823+564823+561372343724372
21M21.00 mi1.00 mi15112+1124789+344789+341455449204920
35K21.75 mi0.75 mi15033+794758+314758+311351044414441
23M23.00 mi1.25 mi14966+674747+114747+111467151575157
24M24.00 mi1.00 mi14869+974728+194728+191350745734573
40K24.85 mi0.85 mi14798+714716+124716+121333146184618
25.2M25.20 mi0.35 mi14756+424700+164700+161289344514451
Finish26.22 mi1.02 mi14724+324710-104710-101478453575357

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21story building
+97ft-345ft

Overall

15314

Females

4758

F60-64

4758

5K→10K

3.1 - 6.2 mi

Top 57%
×5story building
+79ft-138ft

Overall

16079

Females

5167

F60-64

5167

10K→15K

6.2 - 9.3 mi

Top 54%
×3story building
+67ft-78ft

Overall

15314

Females

4758

F60-64

4758

15K→20K

9.3 - 12.4 mi

Top 54%
×5story building
+106ft-86ft

Overall

15413

Females

4865

F60-64

4865

20K→Half

12.4 - 13.1 mi

Top 55%
×2story building
+19ft-37ft

Overall

15652

Females

4972

F60-64

4972

Half→25K

13.1 - 15.5 mi

Top 52%
×4story building
+66ft-88ft

Overall

14773

Females

4629

F60-64

4629

25K→30K

15.5 - 18.6 mi

Top 51%
×9story building
+181ft-148ft

Overall

14608

Females

4685

F60-64

4685

30K→20M

18.6 - 20.0 mi

Top 48%
×5story building
+64ft-50ft

Overall

13723

Females

4372

F60-64

4372

20M→21M

20.0 - 21.0 mi

Top 51%
×8story building
+106ft-24ft

Overall

14554

Females

4920

F60-64

4920

21M→35K

21.0 - 21.8 mi

Top 48%
×7story building
+17ft-86ft

Overall

13510

Females

4441

F60-64

4441

35K→23M

21.8 - 23.0 mi

Top 52%
×5story building
+23ft-63ft

Overall

14671

Females

5157

F60-64

5157

23M→24M

23.0 - 24.0 mi

Top 48%
×6story building
+12ft-82ft

Overall

13507

Females

4573

F60-64

4573

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

13331

Females

4618

F60-64

4618

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1story
+13ft-16ft

Overall

12893

Females

4451

F60-64

4451

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2story building
+22ft-21ft

Overall

14784

Females

5357

F60-64

5357

Passing Analysis

Category:
Athletes Passed
2826
Passed By
883
Net Change
+1943
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16667
5K → 10K473151+322#16667#16345
10K → 15K43566+369#16345#15976
15K → 20K284111+173#15976#15803
20K → Half3725+12#15803#15791
Half → 25K28063+217#15791#15574
25K → 30K336143+193#15574#15381
30K → 20M19336+157#15381#15224
20M → 21M16856+112#15224#15112
21M → 35K9516+79#15112#15033
35K → 23M14376+67#15033#14966
23M → 24M13134+97#14966#14869
24M → 40K10332+71#14869#14798
40K → 25.2M5715+42#14798#14756
25.2M → Finish9159+32#14756#14724
TOTALS2826883+1943

Passing Charts

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