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BOSTON MARATHON 2025

Liu Yi

Bib: 2614•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 13%
Gender (Male)
#0 / 16105
Top 22%
Division (M18-39)
#0 / 5642
Top 46%
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
6:35/mi
20:26
↑ 97↓ 3451.5%
10K· 6.21 mi
6:37/mi
40:59
↑ 79↓ 1380.4%
15K· 9.32 mi
6:37/mi
1:01:31
↑ 67↓ 78
20K· 12.43 mi
6:48/mi
1:22:39
↑ 106↓ 860.1%
Half· 13.11 mi
6:23/mi
1:27:00
↑ 19↓ 370.5%
25K· 15.53 mi
6:42/mi
1:43:14
↑ 66↓ 880.2%
30K· 18.64 mi
6:55/mi
2:04:44
↑ 181↓ 1480.2%
20M
7:00/mi
2:14:15
↑ 64↓ 500.2%
21M
7:29/mi
2:21:44
↑ 106↓ 241.6%
35K· 21.75 mi
6:50/mi
2:26:51
↑ 17↓ 861.7%
23M
6:48/mi
2:35:22
↑ 23↓ 630.6%
24M
6:38/mi
2:42:00
↓ 821.3%
40K· 24.85 mi
6:54/mi
2:47:54
↓ 200.3%
25.2M
7:32/mi
2:50:30
↑ 13↓ 160.2%
Finish· 26.22 mi
6:38/mi
2:57:16
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:00
Pace6:38 /mi
2nd Half
Distance13.11 mi
Time1:30:16
Pace6:53 /mi
📊Positive Split: 3.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:2220:266:3520:26
6:35
-
10K
6.21 mi10:41:5540:596:3620:33
6:37
+0:02
15K
9.32 mi11:02:271:01:316:3620:32
6:37
0:00
20K
12.43 mi11:23:351:22:396:3921:08
6:48
+0:11
Half
13.11 mi11:27:561:27:006:384:21
6:23
-0:25
25K
15.53 mi11:44:101:43:146:3916:14
6:42
+0:19
30K
18.64 mi12:05:402:04:446:4121:30
6:55
+0:13
20M
20.00 mi12:15:112:14:156:439:31
7:00
+0:05
21M
21.00 mi12:22:402:21:446:457:29
7:29
+0:29
35K
21.75 mi12:27:472:26:516:455:07
6:50
-0:39
23M
23.00 mi12:36:182:35:226:458:31
6:48
-0:02
24M
24.00 mi12:42:562:42:006:456:38
6:38
-0:10
40K
24.85 mi12:48:502:47:546:455:54
6:54
+0:16
25.2M
25.20 mi12:51:262:50:306:462:36
7:32
+0:38
Finish
26.22 mi12:58:122:57:166:466:46
6:38
-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

6:23 /mi

Average Pace

6:46 /mi

Slowest Pace

7:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:47:11

94% of race

Time at Steady Pace

7:29

4% of race

Time at Slower Pace

2:36

1% of race

Average Pace: 6:46 /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 mi10:21:2220:266:3520:26
6:35
#4380
10K
6.21 mi10:41:5540:596:3620:33
6:37
#4458
15K
9.32 mi11:02:271:01:316:3620:32
6:37
#4388
20K
12.43 mi11:23:351:22:396:3921:08
6:48
#4551
Half
13.11 mi11:27:561:27:006:384:21
6:23
#4451
25K
15.53 mi11:44:101:43:146:3916:14
6:42
#4326
30K
18.64 mi12:05:402:04:446:4121:30
6:55
#4237
20M
20.00 mi12:15:112:14:156:439:31
7:00
#4197
21M
21.00 mi12:22:402:21:446:457:29
7:29
#4195
35K
21.75 mi12:27:472:26:516:455:07
6:50
#4183
23M
23.00 mi12:36:182:35:226:458:31
6:48
#4056
24M
24.00 mi12:42:562:42:006:456:38
6:38
#3954
40K
24.85 mi12:48:502:47:546:455:54
6:54
#3896
25.2M
25.20 mi12:51:262:50:306:462:36
7:32
#3879
Finish
26.22 mi12:58:122:57:166:466:46
6:38
#3811
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4380411741174293(Top 15%)4031(Top 25%)4031(Top 71%)
10K6.21 mi3.10 mi4458-784191-744191-744570(Top 16%)4280(Top 27%)4280(Top 76%)
15K9.32 mi3.11 mi4388+704125+664125+664293(Top 15%)4031(Top 25%)4031(Top 71%)
20K12.43 mi3.11 mi4551-1634260-1354260-1355291(Top 19%)4857(Top 30%)4857(Top 86%)
Half13.11 mi0.68 mi4451+1004175+854175+852921(Top 10%)2788(Top 17%)2788(Top 49%)
25K15.53 mi2.42 mi4326+1254056+1194056+1194079(Top 14%)3801(Top 24%)3801(Top 67%)
30K18.64 mi3.11 mi4237+893966+903966+904199(Top 15%)3853(Top 24%)3853(Top 68%)
20M20.00 mi1.36 mi4197+403928+383928+384098(Top 14%)3751(Top 23%)3751(Top 66%)
21M21.00 mi1.00 mi4195+23914+143914+144506(Top 16%)3996(Top 25%)3996(Top 71%)
35K21.75 mi0.75 mi4183+123897+173897+174300(Top 15%)3829(Top 24%)3829(Top 68%)
23M23.00 mi1.25 mi4056+1273772+1253772+1252707(Top 10%)2490(Top 15%)2490(Top 44%)
24M24.00 mi1.00 mi3954+1023675+973675+972638(Top 9%)2421(Top 15%)2421(Top 43%)
40K24.85 mi0.85 mi3896+583618+573618+573330(Top 12%)2972(Top 18%)2972(Top 53%)
25.2M25.20 mi0.35 mi3879+173599+193599+193530(Top 12%)3074(Top 19%)3074(Top 54%)
Finish26.22 mi1.02 mi3811+683534+653534+653537(Top 12%)3084(Top 19%)3084(Top 55%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 15%
×21story building
+97ft-345ft

Overall

4293

Males

4031

M18-39

4031

5K→10K

3.1 - 6.2 mi

Top 16%
×5story building
+79ft-138ft

Overall

4570

Males

4280

M18-39

4280

10K→15K

6.2 - 9.3 mi

Top 15%
×3story building
+67ft-78ft

Overall

4293

Males

4031

M18-39

4031

15K→20K

9.3 - 12.4 mi

Top 19%
×5story building
+106ft-86ft

Overall

5291

Males

4857

M18-39

4857

20K→Half

12.4 - 13.1 mi

Top 10%
×2story building
+19ft-37ft

Overall

2921

Males

2788

M18-39

2788

Half→25K

13.1 - 15.5 mi

Top 14%
×4story building
+66ft-88ft

Overall

4079

Males

3801

M18-39

3801

25K→30K

15.5 - 18.6 mi

Top 15%
×9story building
+181ft-148ft

Overall

4199

Males

3853

M18-39

3853

30K→20M

18.6 - 20.0 mi

Top 14%
×5story building
+64ft-50ft

Overall

4098

Males

3751

M18-39

3751

20M→21M

20.0 - 21.0 mi

Top 16%
×8story building
+106ft-24ft

Overall

4506

Males

3996

M18-39

3996

21M→35K

21.0 - 21.8 mi

Top 15%
×7story building
+17ft-86ft

Overall

4300

Males

3829

M18-39

3829

35K→23M

21.8 - 23.0 mi

Top 10%
×5story building
+23ft-63ft

Overall

2707

Males

2490

M18-39

2490

23M→24M

23.0 - 24.0 mi

Top 9%
×6story building
+12ft-82ft

Overall

2638

Males

2421

M18-39

2421

24M→40K

24.0 - 24.9 mi

Top 12%
×1story
+6ft-20ft

Overall

3330

Males

2972

M18-39

2972

40K→25.2M

24.9 - 25.2 mi

Top 12%
×1story
+13ft-16ft

Overall

3530

Males

3074

M18-39

3074

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2story building
+22ft-21ft

Overall

3537

Males

3084

M18-39

3084

Passing Analysis

Category:
Athletes Passed
1385
Passed By
816
Net Change
+569
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4380
5K → 10K112190-78#4380#4458
10K → 15K13161+70#4458#4388
15K → 20K67230-163#4388#4551
20K → Half1000+100#4551#4451
Half → 25K15934+125#4451#4326
25K → 30K18394+89#4326#4237
30K → 20M9656+40#4237#4197
20M → 21M5957+2#4197#4195
21M → 35K3624+12#4195#4183
35K → 23M14518+127#4183#4056
23M → 24M1086+102#4056#3954
24M → 40K7012+58#3954#3896
40K → 25.2M236+17#3896#3879
25.2M → Finish9628+68#3879#3811
TOTALS1385816+569
📊

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