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BOSTON MARATHON 2025

Peng Guo

Bib: 8043•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 25%
Gender (Male)
#0 / 16105
Top 38%
Masters (Masters Men)
#0 / 10463
Top 25%
Division (M45-49)
#0 / 2386
Top 35%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
20:59
Rank: #5933
Start → 5K
20:59 | 6:45/mi
10K· 6.21 mi
42:11
Rank: #6191 (-258)
5K → 10K
21:12 | 6:49/mi
15K· 9.32 mi
1:03:28
Rank: #6289 (-98)
10K → 15K
21:17 | 6:51/mi
20K· 12.43 mi
1:25:19
Rank: #6543 (-254)
15K → 20K
21:51 | 7:02/mi
Half· 13.11 mi
1:30:11
Rank: #6662 (-119)
20K → Half
4:52 | 7:08/mi
25K· 15.53 mi
1:47:55
Rank: #6903 (-241)
Half → 25K
17:44 | 7:19/mi
30K· 18.64 mi
2:11:34
Rank: #7051 (-148)
25K → 30K
23:39 | 7:37/mi
20M
2:22:03
Rank: #7085 (-34)
30K → 20M
10:29 | 7:43/mi
21M
2:30:45
Rank: #7256 (-171)
20M → 21M
8:42 | 8:42/mi
35K· 21.75 mi
2:36:32
Rank: #7299 (-43)
21M → 35K
5:47 | 7:44/mi
23M
2:46:19
Rank: #7326 (-27)
35K → 23M
9:47 | 7:49/mi
24M
2:53:46
Rank: #7269 (+57)
23M → 24M
7:27 | 7:27/mi
40K· 24.85 mi
3:00:22
Rank: #7271 (-2)
24M → 40K
6:36 | 7:43/mi
25.2M
3:03:16
Rank: #7263 (+8)
40K → 25.2M
2:54 | 8:25/mi
Finish· 26.22 mi
3:10:38
Rank: #7229 (+34)
25.2M → Finish
7:22 | 7:14/mi

Course Map & Elevation

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:30:11
Pace6:53 /mi
2nd Half
Distance13.11 mi
Time1:40:27
Pace7:40 /mi
📊Positive Split: 11.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:28:1120:596:4520:59
6:45
-
10K
6.21 mi10:49:2342:116:4721:12
6:49
+0:04
15K
9.32 mi11:10:401:03:286:4921:17
6:51
+0:02
20K
12.43 mi11:32:311:25:196:5221:51
7:02
+0:11
Half
13.11 mi11:37:231:30:116:534:52
7:08
+0:06
25K
15.53 mi11:55:071:47:556:5717:44
7:19
+0:11
30K
18.64 mi12:18:462:11:347:0323:39
7:37
+0:18
20M
20.00 mi12:29:152:22:037:0610:29
7:43
+0:06
21M
21.00 mi12:37:572:30:457:118:42
8:42
+0:59
35K
21.75 mi12:43:442:36:327:125:47
7:44
-0:58
23M
23.00 mi12:53:312:46:197:149:47
7:49
+0:05
24M
24.00 mi13:00:582:53:467:147:27
7:27
-0:22
40K
24.85 mi13:07:343:00:227:156:36
7:43
+0:16
25.2M
25.20 mi13:10:283:03:167:162:54
8:25
+0:42
Finish
26.22 mi13:17:503:10:387:177:22
7:14
-1:11

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

6:45 /mi

Average Pace

7:17 /mi

Slowest Pace

8:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

1:30:11

47% of race

Time at Steady Pace

1:13:17

38% of race

Time at Slower Pace

27:10

14% of race

Average Pace: 7:16 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:28:1120:596:4520:59
6:45
#5933
10K
6.21 mi10:49:2342:116:4721:12
6:49
#6191
15K
9.32 mi11:10:401:03:286:4921:17
6:51
#6289
20K
12.43 mi11:32:311:25:196:5221:51
7:02
#6543
Half
13.11 mi11:37:231:30:116:534:52
7:08
#6662
25K
15.53 mi11:55:071:47:556:5717:44
7:19
#6903
30K
18.64 mi12:18:462:11:347:0323:39
7:37
#7051
20M
20.00 mi12:29:152:22:037:0610:29
7:43
#7085
21M
21.00 mi12:37:572:30:457:118:42
8:42
#7256
35K
21.75 mi12:43:442:36:327:125:47
7:44
#7299
23M
23.00 mi12:53:312:46:197:149:47
7:49
#7326
24M
24.00 mi13:00:582:53:467:147:27
7:27
#7269
40K
24.85 mi13:07:343:00:227:156:36
7:43
#7271
25.2M
25.20 mi13:10:283:03:167:162:54
8:25
#7263
Finish
26.22 mi13:17:503:10:387:177:22
7:14
#7229
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi5933545954596570(Top 23%)5921(Top 37%)5921(Top 248%)
10K6.21 mi3.10 mi6191-2585671-2125671-2126640(Top 23%)5995(Top 37%)5995(Top 251%)
15K9.32 mi3.11 mi6289-985738-675738-676570(Top 23%)5921(Top 37%)5921(Top 248%)
20K12.43 mi3.11 mi6543-2545915-1775915-1777071(Top 25%)6258(Top 39%)6258(Top 262%)
Half13.11 mi0.68 mi6662-1196015-1006015-1008473(Top 30%)7156(Top 44%)7156(Top 300%)
25K15.53 mi2.42 mi6903-2416180-1656180-1658436(Top 30%)7016(Top 44%)7016(Top 294%)
30K18.64 mi3.11 mi7051-1486247-676247-678517(Top 30%)6887(Top 43%)6887(Top 289%)
20M20.00 mi1.36 mi7085-346241+66241+68407(Top 30%)6662(Top 41%)6662(Top 279%)
21M21.00 mi1.00 mi7256-1716328-876328-8711626(Top 41%)8176(Top 51%)8176(Top 343%)
35K21.75 mi0.75 mi7299-436331-36331-310226(Top 36%)7460(Top 46%)7460(Top 313%)
23M23.00 mi1.25 mi7326-276306+256306+258648(Top 30%)6514(Top 40%)6514(Top 273%)
24M24.00 mi1.00 mi7269+576239+676239+677330(Top 26%)5717(Top 35%)5717(Top 240%)
40K24.85 mi0.85 mi7271-26215+246215+248170(Top 29%)6069(Top 38%)6069(Top 254%)
25.2M25.20 mi0.35 mi7263+86196+196196+198144(Top 29%)5968(Top 37%)5968(Top 250%)
Finish26.22 mi1.02 mi7229+346150+466150+467195(Top 25%)5442(Top 34%)5442(Top 228%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 23%
×21stories
+97ft-345ft

Overall

6570

Males

5921

M45-49

5921

5K→10K

3.1 - 6.2 mi

Top 23%
×5stories
+79ft-138ft

Overall

6640

Males

5995

M45-49

5995

10K→15K

6.2 - 9.3 mi

Top 23%
×3stories
+67ft-78ft

Overall

6570

Males

5921

M45-49

5921

15K→20K

9.3 - 12.4 mi

Top 25%
×5stories
+106ft-86ft

Overall

7071

Males

6258

M45-49

6258

20K→Half

12.4 - 13.1 mi

Top 30%
×2stories
+19ft-37ft

Overall

8473

Males

7156

M45-49

7156

Half→25K

13.1 - 15.5 mi

Top 30%
×4stories
+66ft-88ft

Overall

8436

Males

7016

M45-49

7016

25K→30K

15.5 - 18.6 mi

Top 30%
×9stories
+181ft-148ft

Overall

8517

Males

6887

M45-49

6887

30K→20M

18.6 - 20.0 mi

Top 30%
×5stories
+64ft-50ft

Overall

8407

Males

6662

M45-49

6662

20M→21M

20.0 - 21.0 mi

Top 41%
×8stories
+106ft-24ft

Overall

11626

Males

8176

M45-49

8176

21M→35K

21.0 - 21.8 mi

Top 36%
×7stories
+17ft-86ft

Overall

10226

Males

7460

M45-49

7460

35K→23M

21.8 - 23.0 mi

Top 30%
×5stories
+23ft-63ft

Overall

8648

Males

6514

M45-49

6514

23M→24M

23.0 - 24.0 mi

Top 26%
×6stories
+12ft-82ft

Overall

7330

Males

5717

M45-49

5717

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

8170

Males

6069

M45-49

6069

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

8144

Males

5968

M45-49

5968

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2stories
+22ft-21ft

Overall

7195

Males

5442

M45-49

5442

Passing Analysis

Category:
Athletes Passed
1008
Passed By
2304
Net Change
-1296
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5933
5K → 10K97355-258#5933#6191
10K → 15K116214-98#6191#6289
15K → 20K75329-254#6289#6543
20K → Half4123-119#6543#6662
Half → 25K59300-241#6662#6903
25K → 30K136284-148#6903#7051
30K → 20M94128-34#7051#7085
20M → 21M37208-171#7085#7256
21M → 35K4083-43#7256#7299
35K → 23M84111-27#7299#7326
23M → 24M10447+57#7326#7269
24M → 40K6163-2#7269#7271
40K → 25.2M3325+8#7271#7263
25.2M → Finish6834+34#7263#7229
TOTALS10082304-1296
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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