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BOSTON MARATHON 2025

Pengqi Liu

Bib: 6837•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 20%
Gender (Male)
#0 / 16105
Top 31%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:58
Rank: #5892
Start → 5K
20:58 | 6:45/mi
10K· 6.21 mi
42:18
Rank: #6375 (-483)
5K → 10K
21:20 | 6:52/mi
15K· 9.32 mi
1:03:33
Rank: #6382 (-7)
10K → 15K
21:15 | 6:50/mi
20K· 12.43 mi
1:24:56
Rank: #6265 (+117)
15K → 20K
21:23 | 6:53/mi
Half· 13.11 mi
1:29:27
Rank: #6157 (+108)
20K → Half
4:31 | 6:37/mi
25K· 15.53 mi
1:46:11
Rank: #6028 (+129)
Half → 25K
16:44 | 6:54/mi
30K· 18.64 mi
2:08:18
Rank: #5842 (+186)
25K → 30K
22:07 | 7:07/mi
20M
2:18:06
Rank: #5778 (+64)
30K → 20M
9:48 | 7:13/mi
21M
2:25:43
Rank: #5688 (+90)
20M → 21M
7:37 | 7:37/mi
35K· 21.75 mi
2:30:55
Rank: #5644 (+44)
21M → 35K
5:12 | 6:57/mi
23M
2:40:04
Rank: #5553 (+91)
35K → 23M
9:09 | 7:18/mi
24M
2:47:26
Rank: #5544 (+9)
23M → 24M
7:22 | 7:22/mi
40K· 24.85 mi
2:54:05
Rank: #5591 (-47)
24M → 40K
6:39 | 7:47/mi
25.2M
2:56:53
Rank: #5571 (+20)
40K → 25.2M
2:48 | 8:07/mi
Finish· 26.22 mi
3:04:22
Rank: #5606 (-35)
25.2M → Finish
7:29 | 7:21/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:27
Pace6:49 /mi
2nd Half
Distance13.11 mi
Time1:34:55
Pace7:14 /mi
📊Positive Split: 6.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:27:1920:586:4520:58
6:45
-
10K
6.21 mi10:48:3942:186:4821:20
6:52
+0:07
15K
9.32 mi11:09:541:03:336:4921:15
6:50
-0:02
20K
12.43 mi11:31:171:24:566:5021:23
6:53
+0:03
Half
13.11 mi11:35:481:29:276:494:31
6:37
-0:16
25K
15.53 mi11:52:321:46:116:5016:44
6:54
+0:17
30K
18.64 mi12:14:392:08:186:5322:07
7:07
+0:13
20M
20.00 mi12:24:272:18:066:549:48
7:13
+0:06
21M
21.00 mi12:32:042:25:436:567:37
7:37
+0:24
35K
21.75 mi12:37:162:30:556:565:12
6:57
-0:40
23M
23.00 mi12:46:252:40:046:589:09
7:18
+0:21
24M
24.00 mi12:53:472:47:266:597:22
7:22
+0:04
40K
24.85 mi13:00:262:54:057:006:39
7:47
+0:25
25.2M
25.20 mi13:03:142:56:537:012:48
8:07
+0:20
Finish
26.22 mi13:10:433:04:227:027:29
7:21
-0:46

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

6:37 /mi

Average Pace

7:02 /mi

Slowest Pace

8:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:46:11

58% of race

Time at Steady Pace

46:16

25% of race

Time at Slower Pace

31:55

17% of race

Average Pace: 7:02 /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 mi10:27:1920:586:4520:58
6:45
#5892
10K
6.21 mi10:48:3942:186:4821:20
6:52
#6375
15K
9.32 mi11:09:541:03:336:4921:15
6:50
#6382
20K
12.43 mi11:31:171:24:566:5021:23
6:53
#6265
Half
13.11 mi11:35:481:29:276:494:31
6:37
#6157
25K
15.53 mi11:52:321:46:116:5016:44
6:54
#6028
30K
18.64 mi12:14:392:08:186:5322:07
7:07
#5842
20M
20.00 mi12:24:272:18:066:549:48
7:13
#5778
21M
21.00 mi12:32:042:25:436:567:37
7:37
#5688
35K
21.75 mi12:37:162:30:556:565:12
6:57
#5644
23M
23.00 mi12:46:252:40:046:589:09
7:18
#5553
24M
24.00 mi12:53:472:47:266:597:22
7:22
#5544
40K
24.85 mi13:00:262:54:057:006:39
7:47
#5591
25.2M
25.20 mi13:03:142:56:537:012:48
8:07
#5571
Finish
26.22 mi13:10:433:04:227:027:29
7:21
#5606
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5892542754276481(Top 23%)5855(Top 36%)5855(Top 104%)
10K6.21 mi3.10 mi6375-4835821-3945821-3946992(Top 25%)6270(Top 39%)6270(Top 111%)
15K9.32 mi3.11 mi6382-75812+95812+96481(Top 23%)5855(Top 36%)5855(Top 104%)
20K12.43 mi3.11 mi6265+1175694+1185694+1186061(Top 21%)5484(Top 34%)5484(Top 97%)
Half13.11 mi0.68 mi6157+1085609+855609+854649(Top 16%)4342(Top 27%)4342(Top 77%)
25K15.53 mi2.42 mi6028+1295483+1265483+1265690(Top 20%)5152(Top 32%)5152(Top 91%)
30K18.64 mi3.11 mi5842+1865317+1665317+1665429(Top 19%)4880(Top 30%)4880(Top 86%)
20M20.00 mi1.36 mi5778+645252+655252+655268(Top 19%)4685(Top 29%)4685(Top 83%)
21M21.00 mi1.00 mi5688+905173+795173+795225(Top 18%)4546(Top 28%)4546(Top 81%)
35K21.75 mi0.75 mi5644+445132+415132+415080(Top 18%)4447(Top 28%)4447(Top 79%)
23M23.00 mi1.25 mi5553+915038+945038+945519(Top 19%)4682(Top 29%)4682(Top 83%)
24M24.00 mi1.00 mi5544+95014+245014+246810(Top 24%)5409(Top 34%)5409(Top 96%)
40K24.85 mi0.85 mi5591-475038-245038-248572(Top 30%)6279(Top 39%)6279(Top 111%)
25.2M25.20 mi0.35 mi5571+205013+255013+256568(Top 23%)5097(Top 32%)5097(Top 90%)
Finish26.22 mi1.02 mi5606-355023-105023-108048(Top 28%)5933(Top 37%)5933(Top 105%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 23%
×21stories
+97ft-345ft

Overall

6481

Males

5855

M18-39

5855

5K→10K

3.1 - 6.2 mi

Top 25%
×5stories
+79ft-138ft

Overall

6992

Males

6270

M18-39

6270

10K→15K

6.2 - 9.3 mi

Top 23%
×3stories
+67ft-78ft

Overall

6481

Males

5855

M18-39

5855

15K→20K

9.3 - 12.4 mi

Top 21%
×5stories
+106ft-86ft

Overall

6061

Males

5484

M18-39

5484

20K→Half

12.4 - 13.1 mi

Top 16%
×2stories
+19ft-37ft

Overall

4649

Males

4342

M18-39

4342

Half→25K

13.1 - 15.5 mi

Top 20%
×4stories
+66ft-88ft

Overall

5690

Males

5152

M18-39

5152

25K→30K

15.5 - 18.6 mi

Top 19%
×9stories
+181ft-148ft

Overall

5429

Males

4880

M18-39

4880

30K→20M

18.6 - 20.0 mi

Top 19%
×5stories
+64ft-50ft

Overall

5268

Males

4685

M18-39

4685

20M→21M

20.0 - 21.0 mi

Top 18%
×8stories
+106ft-24ft

Overall

5225

Males

4546

M18-39

4546

21M→35K

21.0 - 21.8 mi

Top 18%
×7stories
+17ft-86ft

Overall

5080

Males

4447

M18-39

4447

35K→23M

21.8 - 23.0 mi

Top 19%
×5stories
+23ft-63ft

Overall

5519

Males

4682

M18-39

4682

23M→24M

23.0 - 24.0 mi

Top 24%
×6stories
+12ft-82ft

Overall

6810

Males

5409

M18-39

5409

24M→40K

24.0 - 24.9 mi

Top 30%
×1story
+6ft-20ft

Overall

8572

Males

6279

M18-39

6279

40K→25.2M

24.9 - 25.2 mi

Top 23%
×1story
+13ft-16ft

Overall

6568

Males

5097

M18-39

5097

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2stories
+22ft-21ft

Overall

8048

Males

5933

M18-39

5933

Passing Analysis

Category:
Athletes Passed
1528
Passed By
1242
Net Change
+286
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5892
5K → 10K61544-483#5892#6375
10K → 15K150157-7#6375#6382
15K → 20K19578+117#6382#6265
20K → Half1080+108#6265#6157
Half → 25K18051+129#6157#6028
25K → 30K27993+186#6028#5842
30K → 20M10137+64#5842#5778
20M → 21M10919+90#5778#5688
21M → 35K5511+44#5688#5644
35K → 23M12736+91#5644#5553
23M → 24M6051+9#5553#5544
24M → 40K3279-47#5544#5591
40K → 25.2M3616+20#5591#5571
25.2M → Finish3570-35#5571#5606
TOTALS15281242+286
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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