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BOSTON MARATHON 2025

Yifan Zhang

Bib: 2700•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 10%
Gender (Male)
#0 / 16105
Top 16%
Masters (Masters Men)
#0 / 10463
Top 5%
Division (M45-49)
#0 / 2386
Top 5%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:24
Rank: #2109
Start → 5K
19:24 | 6:15/mi
10K· 6.21 mi
39:07
Rank: #2379 (-270)
5K → 10K
19:43 | 6:21/mi
15K· 9.32 mi
58:42
Rank: #2357 (+22)
10K → 15K
19:35 | 6:18/mi
20K· 12.43 mi
1:18:25
Rank: #2307 (+50)
15K → 20K
19:43 | 6:21/mi
Half· 13.11 mi
1:22:35
Rank: #2271 (+36)
20K → Half
4:10 | 6:06/mi
25K· 15.53 mi
1:38:05
Rank: #2258 (+13)
Half → 25K
15:30 | 6:24/mi
30K· 18.64 mi
1:58:40
Rank: #2266 (-8)
25K → 30K
20:35 | 6:38/mi
20M
2:07:47
Rank: #2259 (+7)
30K → 20M
9:07 | 6:43/mi
21M
2:15:07
Rank: #2310 (-51)
20M → 21M
7:20 | 7:20/mi
35K· 21.75 mi
2:20:10
Rank: #2328 (-18)
21M → 35K
5:03 | 6:45/mi
23M
2:29:08
Rank: #2437 (-109)
35K → 23M
8:58 | 7:10/mi
24M
2:36:07
Rank: #2486 (-49)
23M → 24M
6:59 | 6:59/mi
40K· 24.85 mi
2:42:22
Rank: #2564 (-78)
24M → 40K
6:15 | 7:19/mi
25.2M
2:45:07
Rank: #2597 (-33)
40K → 25.2M
2:45 | 7:58/mi
Finish· 26.22 mi
2:52:33
Rank: #2729 (-132)
25.2M → Finish
7:26 | 7:18/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:22:35
Pace6:18 /mi
2nd Half
Distance13.11 mi
Time1:29:58
Pace6:52 /mi
📊Positive Split: 8.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:3219:246:1519:24
6:15
-
10K
6.21 mi10:40:1539:076:1819:43
6:21
+0:06
15K
9.32 mi10:59:5058:426:1819:35
6:18
-0:03
20K
12.43 mi11:19:331:18:256:1919:43
6:21
+0:03
Half
13.11 mi11:23:431:22:356:184:10
6:06
-0:15
25K
15.53 mi11:39:131:38:056:1915:30
6:24
+0:18
30K
18.64 mi11:59:481:58:406:2220:35
6:38
+0:14
20M
20.00 mi12:08:552:07:476:239:07
6:43
+0:05
21M
21.00 mi12:16:152:15:076:267:20
7:20
+0:37
35K
21.75 mi12:21:182:20:106:275:03
6:45
-0:35
23M
23.00 mi12:30:162:29:086:298:58
7:10
+0:25
24M
24.00 mi12:37:152:36:076:306:59
6:59
-0:11
40K
24.85 mi12:43:302:42:226:326:15
7:19
+0:20
25.2M
25.20 mi12:46:152:45:076:332:45
7:58
+0:39
Finish
26.22 mi12:53:412:52:336:357:26
7:18
-0:40

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

6:06 /mi

Average Pace

6:35 /mi

Slowest Pace

7:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:38:05

57% of race

Time at Steady Pace

34:45

20% of race

Time at Slower Pace

39:43

23% of race

Average Pace: 6:35 /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 mi10:20:3219:246:1519:24
6:15
#2109
10K
6.21 mi10:40:1539:076:1819:43
6:21
#2379
15K
9.32 mi10:59:5058:426:1819:35
6:18
#2357
20K
12.43 mi11:19:331:18:256:1919:43
6:21
#2307
Half
13.11 mi11:23:431:22:356:184:10
6:06
#2271
25K
15.53 mi11:39:131:38:056:1915:30
6:24
#2258
30K
18.64 mi11:59:481:58:406:2220:35
6:38
#2266
20M
20.00 mi12:08:552:07:476:239:07
6:43
#2259
21M
21.00 mi12:16:152:15:076:267:20
7:20
#2310
35K
21.75 mi12:21:182:20:106:275:03
6:45
#2328
23M
23.00 mi12:30:162:29:086:298:58
7:10
#2437
24M
24.00 mi12:37:152:36:076:306:59
6:59
#2486
40K
24.85 mi12:43:302:42:226:326:15
7:19
#2564
25.2M
25.20 mi12:46:152:45:076:332:45
7:58
#2597
Finish
26.22 mi12:53:412:52:336:357:26
7:18
#2729
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi2109201120112342(Top 8%)2234(Top 14%)2234(Top 94%)
10K6.21 mi3.10 mi2379-2702269-2582269-2582705(Top 10%)2576(Top 16%)2576(Top 108%)
15K9.32 mi3.11 mi2357+222252+172252+172342(Top 8%)2234(Top 14%)2234(Top 94%)
20K12.43 mi3.11 mi2307+502203+492203+492253(Top 8%)2147(Top 13%)2147(Top 90%)
Half13.11 mi0.68 mi2271+362170+332170+331567(Top 6%)1490(Top 9%)1490(Top 62%)
25K15.53 mi2.42 mi2258+132155+152155+152329(Top 8%)2214(Top 14%)2214(Top 93%)
30K18.64 mi3.11 mi2266-82161-62161-62514(Top 9%)2380(Top 15%)2380(Top 100%)
20M20.00 mi1.36 mi2259+72155+62155+62491(Top 9%)2345(Top 15%)2345(Top 98%)
21M21.00 mi1.00 mi2310-512202-472202-473744(Top 13%)3407(Top 21%)3407(Top 143%)
35K21.75 mi0.75 mi2328-182218-162218-163757(Top 13%)3379(Top 21%)3379(Top 142%)
23M23.00 mi1.25 mi2437-1092319-1012319-1014631(Top 16%)4046(Top 25%)4046(Top 170%)
24M24.00 mi1.00 mi2486-492363-442363-444495(Top 16%)3888(Top 24%)3888(Top 163%)
40K24.85 mi0.85 mi2564-782432-692432-695663(Top 20%)4637(Top 29%)4637(Top 194%)
25.2M25.20 mi0.35 mi2597-332461-292461-295707(Top 20%)4532(Top 28%)4532(Top 190%)
Finish26.22 mi1.02 mi2729-1322582-1212582-1217681(Top 27%)5710(Top 35%)5710(Top 239%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21stories
+97ft-345ft

Overall

2342

Males

2234

M45-49

2234

5K→10K

3.1 - 6.2 mi

Top 10%
×5stories
+79ft-138ft

Overall

2705

Males

2576

M45-49

2576

10K→15K

6.2 - 9.3 mi

Top 8%
×3stories
+67ft-78ft

Overall

2342

Males

2234

M45-49

2234

15K→20K

9.3 - 12.4 mi

Top 8%
×5stories
+106ft-86ft

Overall

2253

Males

2147

M45-49

2147

20K→Half

12.4 - 13.1 mi

Top 6%
×2stories
+19ft-37ft

Overall

1567

Males

1490

M45-49

1490

Half→25K

13.1 - 15.5 mi

Top 8%
×4stories
+66ft-88ft

Overall

2329

Males

2214

M45-49

2214

25K→30K

15.5 - 18.6 mi

Top 9%
×9stories
+181ft-148ft

Overall

2514

Males

2380

M45-49

2380

30K→20M

18.6 - 20.0 mi

Top 9%
×5stories
+64ft-50ft

Overall

2491

Males

2345

M45-49

2345

20M→21M

20.0 - 21.0 mi

Top 13%
×8stories
+106ft-24ft

Overall

3744

Males

3407

M45-49

3407

21M→35K

21.0 - 21.8 mi

Top 13%
×7stories
+17ft-86ft

Overall

3757

Males

3379

M45-49

3379

35K→23M

21.8 - 23.0 mi

Top 16%
×5stories
+23ft-63ft

Overall

4631

Males

4046

M45-49

4046

23M→24M

23.0 - 24.0 mi

Top 16%
×6stories
+12ft-82ft

Overall

4495

Males

3888

M45-49

3888

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5663

Males

4637

M45-49

4637

40K→25.2M

24.9 - 25.2 mi

Top 20%
×1story
+13ft-16ft

Overall

5707

Males

4532

M45-49

4532

25.2M→Finish

25.2 - 26.2 mi

Top 27%
×2stories
+22ft-21ft

Overall

7681

Males

5710

M45-49

5710

Passing Analysis

Category:
Athletes Passed
562
Passed By
1182
Net Change
-620
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2109
5K → 10K27297-270#2109#2379
10K → 15K9371+22#2379#2357
15K → 20K9343+50#2357#2307
20K → Half382+36#2307#2271
Half → 25K5643+13#2271#2258
25K → 30K9199-8#2258#2266
30K → 20M4235+7#2266#2259
20M → 21M2576-51#2259#2310
21M → 35K2038-18#2310#2328
35K → 23M19128-109#2328#2437
23M → 24M3180-49#2437#2486
24M → 40K1391-78#2486#2564
40K → 25.2M841-33#2564#2597
25.2M → Finish6138-132#2597#2729
TOTALS5621182-620
📊

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