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BOSTON MARATHON 2025

Liao Mingfeng

Bib: 12535•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 50%
Gender (Female)
#0 / 12228
Top 36%
Division (F18-39)
#0 / 5469
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
7:35/mi
23:33
↑ 97↓ 3451.5%
10K· 6.21 mi
8:08/mi
48:50
↑ 79↓ 1380.4%
15K· 9.32 mi
7:52/mi
1:13:16
↑ 67↓ 78
20K· 12.43 mi
8:19/mi
1:39:06
↑ 106↓ 860.1%
Half· 13.11 mi
7:59/mi
1:44:33
↑ 19↓ 370.5%
25K· 15.53 mi
8:09/mi
2:04:19
↑ 66↓ 880.2%
30K· 18.64 mi
8:27/mi
2:30:34
↑ 181↓ 1480.2%
20M
8:21/mi
2:41:55
↑ 64↓ 500.2%
21M
8:47/mi
2:50:42
↑ 106↓ 241.6%
35K· 21.75 mi
8:17/mi
2:56:54
↑ 17↓ 861.7%
23M
8:24/mi
3:07:25
↑ 23↓ 630.6%
24M
8:12/mi
3:15:37
↓ 821.3%
40K· 24.85 mi
8:15/mi
3:22:40
↓ 200.3%
25.2M
8:56/mi
3:25:45
↑ 13↓ 160.2%
Finish· 26.22 mi
7:44/mi
3:33:38
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:33
Pace7:59 /mi
2nd Half
Distance13.11 mi
Time1:49:05
Pace8:19 /mi
📊Positive Split: 4.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:0223:337:3523:33
7:35
-
10K
6.21 mi11:16:1948:507:5225:17
8:08
+0:33
15K
9.32 mi11:40:451:13:167:5224:26
7:52
-0:16
20K
12.43 mi12:06:351:39:067:5825:50
8:19
+0:27
Half
13.11 mi12:12:021:44:337:595:27
7:59
-0:20
25K
15.53 mi12:31:482:04:198:0019:46
8:09
+0:10
30K
18.64 mi12:58:032:30:348:0526:15
8:27
+0:18
20M
20.00 mi13:09:242:41:558:0611:21
8:21
-0:06
21M
21.00 mi13:18:112:50:428:088:47
8:47
+0:26
35K
21.75 mi13:24:232:56:548:086:12
8:17
-0:30
23M
23.00 mi13:34:543:07:258:0910:31
8:24
+0:07
24M
24.00 mi13:43:063:15:378:098:12
8:12
-0:12
40K
24.85 mi13:50:093:22:408:097:03
8:15
+0:03
25.2M
25.20 mi13:53:143:25:458:103:05
8:56
+0:41
Finish
26.22 mi14:01:073:33:388:097:53
7:44
-1:12

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

7:35 /mi

Average Pace

8:09 /mi

Slowest Pace

8:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:33:39

72% of race

Time at Steady Pace

59:59

28% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:09 /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 mi10:51:0223:337:3523:33
7:35
#12960
10K
6.21 mi11:16:1948:507:5225:17
8:08
#15333
15K
9.32 mi11:40:451:13:167:5224:26
7:52
#15177
20K
12.43 mi12:06:351:39:067:5825:50
8:19
#15734
Half
13.11 mi12:12:021:44:337:595:27
7:59
#15737
25K
15.53 mi12:31:482:04:198:0019:46
8:09
#15562
30K
18.64 mi12:58:032:30:348:0526:15
8:27
#15337
20M
20.00 mi13:09:242:41:558:0611:21
8:21
#15105
21M
21.00 mi13:18:112:50:428:088:47
8:47
#14876
35K
21.75 mi13:24:232:56:548:086:12
8:17
#14812
23M
23.00 mi13:34:543:07:258:0910:31
8:24
#14660
24M
24.00 mi13:43:063:15:378:098:12
8:12
#14551
40K
24.85 mi13:50:093:22:408:097:03
8:15
#14412
25.2M
25.20 mi13:53:143:25:458:103:05
8:56
#14359
Finish
26.22 mi14:01:073:33:388:097:53
7:44
#14201
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi129603298329814962(Top 53%)4559(Top 37%)4559(Top 83%)
10K6.21 mi3.10 mi15333-23734739-14414739-144117463(Top 61%)5976(Top 49%)5976(Top 109%)
15K9.32 mi3.11 mi15177+1564667+724667+7214962(Top 53%)4559(Top 37%)4559(Top 83%)
20K12.43 mi3.11 mi15734-5575002-3355002-33517011(Top 60%)5778(Top 47%)5778(Top 106%)
Half13.11 mi0.68 mi15737-35006-45006-415819(Top 56%)5054(Top 41%)5054(Top 92%)
25K15.53 mi2.42 mi15562+1754921+854921+8514993(Top 53%)4729(Top 39%)4729(Top 86%)
30K18.64 mi3.11 mi15337+2254846+754846+7514448(Top 51%)4606(Top 38%)4606(Top 84%)
20M20.00 mi1.36 mi15105+2324760+864760+8612882(Top 45%)3911(Top 32%)3911(Top 72%)
21M21.00 mi1.00 mi14876+2294653+1074653+10712236(Top 43%)3733(Top 31%)3733(Top 68%)
35K21.75 mi0.75 mi14812+644629+244629+2414196(Top 50%)4784(Top 39%)4784(Top 87%)
23M23.00 mi1.25 mi14660+1524581+484581+4812711(Top 45%)4109(Top 34%)4109(Top 75%)
24M24.00 mi1.00 mi14551+1094540+414540+4112598(Top 44%)4109(Top 34%)4109(Top 75%)
40K24.85 mi0.85 mi14412+1394499+414499+4111876(Top 42%)3863(Top 32%)3863(Top 71%)
25.2M25.20 mi0.35 mi14359+534482+174482+1711552(Top 41%)3789(Top 31%)3789(Top 69%)
Finish26.22 mi1.02 mi14201+1584419+634419+6311007(Top 39%)3475(Top 28%)3475(Top 64%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21story building
+97ft-345ft

Overall

14962

Females

4559

F18-39

4559

5K→10K

3.1 - 6.2 mi

Top 61%
×5story building
+79ft-138ft

Overall

17463

Females

5976

F18-39

5976

10K→15K

6.2 - 9.3 mi

Top 53%
×3story building
+67ft-78ft

Overall

14962

Females

4559

F18-39

4559

15K→20K

9.3 - 12.4 mi

Top 60%
×5story building
+106ft-86ft

Overall

17011

Females

5778

F18-39

5778

20K→Half

12.4 - 13.1 mi

Top 56%
×2story building
+19ft-37ft

Overall

15819

Females

5054

F18-39

5054

Half→25K

13.1 - 15.5 mi

Top 53%
×4story building
+66ft-88ft

Overall

14993

Females

4729

F18-39

4729

25K→30K

15.5 - 18.6 mi

Top 51%
×9story building
+181ft-148ft

Overall

14448

Females

4606

F18-39

4606

30K→20M

18.6 - 20.0 mi

Top 45%
×5story building
+64ft-50ft

Overall

12882

Females

3911

F18-39

3911

20M→21M

20.0 - 21.0 mi

Top 43%
×8story building
+106ft-24ft

Overall

12236

Females

3733

F18-39

3733

21M→35K

21.0 - 21.8 mi

Top 50%
×7story building
+17ft-86ft

Overall

14196

Females

4784

F18-39

4784

35K→23M

21.8 - 23.0 mi

Top 45%
×5story building
+23ft-63ft

Overall

12711

Females

4109

F18-39

4109

23M→24M

23.0 - 24.0 mi

Top 44%
×6story building
+12ft-82ft

Overall

12598

Females

4109

F18-39

4109

24M→40K

24.0 - 24.9 mi

Top 42%
×1story
+6ft-20ft

Overall

11876

Females

3863

F18-39

3863

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

11552

Females

3789

F18-39

3789

25.2M→Finish

25.2 - 26.2 mi

Top 39%
×2story building
+22ft-21ft

Overall

11007

Females

3475

F18-39

3475

Passing Analysis

Category:
Athletes Passed
2319
Passed By
3560
Net Change
-1241
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12960
5K → 10K162389-2373#12960#15333
10K → 15K284128+156#15333#15177
15K → 20K81638-557#15177#15734
20K → Half3033-3#15734#15737
Half → 25K25984+175#15737#15562
25K → 30K354129+225#15562#15337
30K → 20M25220+232#15337#15105
20M → 21M24819+229#15105#14876
21M → 35K9026+64#14876#14812
35K → 23M18836+152#14812#14660
23M → 24M13627+109#14660#14551
24M → 40K14910+139#14551#14412
40K → 25.2M607+53#14412#14359
25.2M → Finish17214+158#14359#14201
TOTALS23193560-1241
📊

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