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BOSTON MARATHON 2025

Zhifeng Liu

Bib: 11913•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 30%
Gender (Male)
#0 / 16105
Top 43%
Masters (Masters Men)
#0 / 10463
Top 31%
Division (M50-54)
#0 / 1996
Top 29%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:03
Rank: #11493
Start → 5K
23:03 | 7:25/mi
10K· 6.21 mi
46:14
Rank: #11605 (-112)
5K → 10K
23:11 | 7:28/mi
15K· 9.32 mi
1:09:01
Rank: #11105 (+500)
10K → 15K
22:47 | 7:20/mi
20K· 12.43 mi
1:31:59
Rank: #10768 (+337)
15K → 20K
22:58 | 7:24/mi
Half· 13.11 mi
1:37:01
Rank: #10763 (+5)
20K → Half
5:02 | 7:23/mi
25K· 15.53 mi
1:54:49
Rank: #10365 (+398)
Half → 25K
17:48 | 7:20/mi
30K· 18.64 mi
2:18:21
Rank: #9889 (+476)
25K → 30K
23:32 | 7:34/mi
20M
2:28:37
Rank: #9637 (+252)
30K → 20M
10:16 | 7:33/mi
21M
2:37:03
Rank: #9619 (+18)
20M → 21M
8:26 | 8:26/mi
35K· 21.75 mi
2:42:35
Rank: #9536 (+83)
21M → 35K
5:32 | 7:24/mi
23M
2:52:21
Rank: #9436 (+100)
35K → 23M
9:46 | 7:48/mi
24M
2:59:27
Rank: #9190 (+246)
23M → 24M
7:06 | 7:06/mi
40K· 24.85 mi
3:05:38
Rank: #8951 (+239)
24M → 40K
6:11 | 7:14/mi
25.2M
3:08:18
Rank: #8846 (+105)
40K → 25.2M
2:40 | 7:44/mi
Finish· 26.22 mi
3:15:08
Rank: #8599 (+247)
25.2M → Finish
6:50 | 6:42/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:01
Pace7:24 /mi
2nd Half
Distance13.11 mi
Time1:38:07
Pace7:29 /mi
📊Positive Split: 1.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:1723:037:2523:03
7:25
-
10K
6.21 mi11:15:2846:147:2623:11
7:28
+0:03
15K
9.32 mi11:38:151:09:017:2422:47
7:20
-0:08
20K
12.43 mi12:01:131:31:597:2422:58
7:24
+0:04
Half
13.11 mi12:06:151:37:017:245:02
7:23
-0:01
25K
15.53 mi12:24:031:54:497:2317:48
7:20
-0:03
30K
18.64 mi12:47:352:18:217:2523:32
7:34
+0:14
20M
20.00 mi12:57:512:28:377:2610:16
7:33
-0:01
21M
21.00 mi13:06:172:37:037:298:26
8:26
+0:53
35K
21.75 mi13:11:492:42:357:295:32
7:24
-1:02
23M
23.00 mi13:21:352:52:217:309:46
7:48
+0:24
24M
24.00 mi13:28:412:59:277:297:06
7:06
-0:42
40K
24.85 mi13:34:523:05:387:286:11
7:14
+0:08
25.2M
25.20 mi13:37:323:08:187:282:40
7:44
+0:30
Finish
26.22 mi13:44:223:15:087:276:50
6:42
-1:02

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

6:42 /mi

Average Pace

7:27 /mi

Slowest Pace

8:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

13:56

7% of race

Time at Steady Pace

2:40:20

82% of race

Time at Slower Pace

20:52

11% of race

Average Pace: 7:27 /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 mi10:52:1723:037:2523:03
7:25
#11493
10K
6.21 mi11:15:2846:147:2623:11
7:28
#11605
15K
9.32 mi11:38:151:09:017:2422:47
7:20
#11105
20K
12.43 mi12:01:131:31:597:2422:58
7:24
#10768
Half
13.11 mi12:06:151:37:017:245:02
7:23
#10763
25K
15.53 mi12:24:031:54:497:2317:48
7:20
#10365
30K
18.64 mi12:47:352:18:217:2523:32
7:34
#9889
20M
20.00 mi12:57:512:28:377:2610:16
7:33
#9637
21M
21.00 mi13:06:172:37:037:298:26
8:26
#9619
35K
21.75 mi13:11:492:42:357:295:32
7:24
#9536
23M
23.00 mi13:21:352:52:217:309:46
7:48
#9436
24M
24.00 mi13:28:412:59:277:297:06
7:06
#9190
40K
24.85 mi13:34:523:05:387:286:11
7:14
#8951
25.2M
25.20 mi13:37:323:08:187:282:40
7:44
#8846
Finish
26.22 mi13:44:223:15:087:276:50
6:42
#8599
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi114938937893710248(Top 36%)8215(Top 51%)8215(Top 412%)
10K6.21 mi3.10 mi11605-1128966-298966-2911714(Top 41%)9006(Top 56%)9006(Top 451%)
15K9.32 mi3.11 mi11105+5008701+2658701+26510248(Top 36%)8215(Top 51%)8215(Top 412%)
20K12.43 mi3.11 mi10768+3378514+1878514+1879824(Top 35%)7908(Top 49%)7908(Top 396%)
Half13.11 mi0.68 mi10763+58506+88506+810592(Top 37%)8314(Top 52%)8314(Top 417%)
25K15.53 mi2.42 mi10365+3988264+2428264+2428666(Top 31%)7152(Top 44%)7152(Top 358%)
30K18.64 mi3.11 mi9889+4767959+3057959+3058251(Top 29%)6739(Top 42%)6739(Top 338%)
20M20.00 mi1.36 mi9637+2527782+1777782+1777397(Top 26%)6079(Top 38%)6079(Top 305%)
21M21.00 mi1.00 mi9619+187746+367746+3610018(Top 35%)7369(Top 46%)7369(Top 369%)
35K21.75 mi0.75 mi9536+837682+647682+647875(Top 28%)6229(Top 39%)6229(Top 312%)
23M23.00 mi1.25 mi9436+1007584+987584+988570(Top 30%)6477(Top 40%)6477(Top 324%)
24M24.00 mi1.00 mi9190+2467418+1667418+1665228(Top 18%)4418(Top 27%)4418(Top 221%)
40K24.85 mi0.85 mi8951+2397242+1767242+1765242(Top 18%)4383(Top 27%)4383(Top 220%)
25.2M25.20 mi0.35 mi8846+1057160+827160+824545(Top 16%)3823(Top 24%)3823(Top 192%)
Finish26.22 mi1.02 mi8599+2476988+1726988+1723926(Top 14%)3391(Top 21%)3391(Top 170%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21stories
+97ft-345ft

Overall

10248

Males

8215

M50-54

8215

5K→10K

3.1 - 6.2 mi

Top 41%
×5stories
+79ft-138ft

Overall

11714

Males

9006

M50-54

9006

10K→15K

6.2 - 9.3 mi

Top 36%
×3stories
+67ft-78ft

Overall

10248

Males

8215

M50-54

8215

15K→20K

9.3 - 12.4 mi

Top 35%
×5stories
+106ft-86ft

Overall

9824

Males

7908

M50-54

7908

20K→Half

12.4 - 13.1 mi

Top 37%
×2stories
+19ft-37ft

Overall

10592

Males

8314

M50-54

8314

Half→25K

13.1 - 15.5 mi

Top 31%
×4stories
+66ft-88ft

Overall

8666

Males

7152

M50-54

7152

25K→30K

15.5 - 18.6 mi

Top 29%
×9stories
+181ft-148ft

Overall

8251

Males

6739

M50-54

6739

30K→20M

18.6 - 20.0 mi

Top 26%
×5stories
+64ft-50ft

Overall

7397

Males

6079

M50-54

6079

20M→21M

20.0 - 21.0 mi

Top 35%
×8stories
+106ft-24ft

Overall

10018

Males

7369

M50-54

7369

21M→35K

21.0 - 21.8 mi

Top 28%
×7stories
+17ft-86ft

Overall

7875

Males

6229

M50-54

6229

35K→23M

21.8 - 23.0 mi

Top 30%
×5stories
+23ft-63ft

Overall

8570

Males

6477

M50-54

6477

23M→24M

23.0 - 24.0 mi

Top 18%
×6stories
+12ft-82ft

Overall

5228

Males

4418

M50-54

4418

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

5242

Males

4383

M50-54

4383

40K→25.2M

24.9 - 25.2 mi

Top 16%
×1story
+13ft-16ft

Overall

4545

Males

3823

M50-54

3823

25.2M→Finish

25.2 - 26.2 mi

Top 14%
×2stories
+22ft-21ft

Overall

3926

Males

3391

M50-54

3391

Passing Analysis

Category:
Athletes Passed
3505*
Passed By
611
Net Change
+2894
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11493
5K → 10K193305-112#11493#11605
10K → 15K52323+500#11605#11105
15K → 20K37033+337#11105#10768
20K → Half3530+5#10768#10763
Half → 25K41214+398#10763#10365
25K → 30K508*32+476#10365#9889
30K → 20M26311+252#9889#9637
20M → 21M9779+18#9637#9619
21M → 35K10017+83#9619#9536
35K → 23M15757+100#9536#9436
23M → 24M2504+246#9436#9190
24M → 40K2412+239#9190#8951
40K → 25.2M1061+105#8951#8846
25.2M → Finish2503+247#8846#8599
TOTALS3505*611+2894

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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