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BOSTON MARATHON 2025

Guochun Mo

Bib: 14928•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 48%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M55-59)
#0 / 1648
Top 40%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:59
Rank: #16899
Start → 5K
24:59 | 8:02/mi
10K· 6.21 mi
49:01
Rank: #15558 (+1341)
5K → 10K
24:02 | 7:44/mi
15K· 9.32 mi
1:12:59
Rank: #14893 (+665)
10K → 15K
23:58 | 7:43/mi
20K· 12.43 mi
1:37:32
Rank: #14650 (+243)
15K → 20K
24:33 | 7:54/mi
Half· 13.11 mi
1:42:52
Rank: #14629 (+21)
20K → Half
5:20 | 7:49/mi
25K· 15.53 mi
2:01:53
Rank: #14274 (+355)
Half → 25K
19:01 | 7:51/mi
30K· 18.64 mi
2:27:35
Rank: #14015 (+259)
25K → 30K
25:42 | 8:16/mi
20M
2:39:17
Rank: #14019 (-4)
30K → 20M
11:42 | 8:37/mi
21M
2:48:00
Rank: #13854 (+165)
20M → 21M
8:43 | 8:43/mi
35K· 21.75 mi
2:54:03
Rank: #13795 (+59)
21M → 35K
6:03 | 8:05/mi
23M
3:04:37
Rank: #13726 (+69)
35K → 23M
10:34 | 8:26/mi
24M
3:12:50
Rank: #13677 (+49)
23M → 24M
8:13 | 8:13/mi
40K· 24.85 mi
3:19:59
Rank: #13616 (+61)
24M → 40K
7:09 | 8:22/mi
25.2M
3:23:27
Rank: #13684 (-68)
40K → 25.2M
3:28 | 10:03/mi
Finish· 26.22 mi
3:31:41
Rank: #13663 (+21)
25.2M → Finish
8:14 | 8:05/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:52
Pace7:51 /mi
2nd Half
Distance13.11 mi
Time1:48:49
Pace8:18 /mi
📊Positive Split: 5.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:57:3124:598:0224:59
8:02
-
10K
6.21 mi11:21:3349:017:5324:02
7:44
-0:18
15K
9.32 mi11:45:311:12:597:5023:58
7:43
-0:01
20K
12.43 mi12:10:041:37:327:5124:33
7:54
+0:11
Half
13.11 mi12:15:241:42:527:515:20
7:49
-0:05
25K
15.53 mi12:34:252:01:537:5119:01
7:51
+0:02
30K
18.64 mi13:00:072:27:357:5525:42
8:16
+0:25
20M
20.00 mi13:11:492:39:177:5811:42
8:37
+0:21
21M
21.00 mi13:20:322:48:008:008:43
8:43
+0:06
35K
21.75 mi13:26:352:54:038:006:03
8:05
-0:38
23M
23.00 mi13:37:093:04:378:0210:34
8:26
+0:21
24M
24.00 mi13:45:223:12:508:028:13
8:13
-0:13
40K
24.85 mi13:52:313:19:598:037:09
8:22
+0:09
25.2M
25.20 mi13:55:593:23:278:043:28
10:03
+1:41
Finish
26.22 mi14:04:133:31:418:058:14
8:05
-1:58

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

7:43 /mi

Average Pace

8:05 /mi

Slowest Pace

10:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

48:00

23% of race

Time at Steady Pace

2:02:05

58% of race

Time at Slower Pace

41:36

20% of race

Average Pace: 8:04 /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 mi10:57:3124:598:0224:59
8:02
#16899
10K
6.21 mi11:21:3349:017:5324:02
7:44
#15558
15K
9.32 mi11:45:311:12:597:5023:58
7:43
#14893
20K
12.43 mi12:10:041:37:327:5124:33
7:54
#14650
Half
13.11 mi12:15:241:42:527:515:20
7:49
#14629
25K
15.53 mi12:34:252:01:537:5119:01
7:51
#14274
30K
18.64 mi13:00:072:27:357:5525:42
8:16
#14015
20M
20.00 mi13:11:492:39:177:5811:42
8:37
#14019
21M
21.00 mi13:20:322:48:008:008:43
8:43
#13854
35K
21.75 mi13:26:352:54:038:006:03
8:05
#13795
23M
23.00 mi13:37:093:04:378:0210:34
8:26
#13726
24M
24.00 mi13:45:223:12:508:028:13
8:13
#13677
40K
24.85 mi13:52:313:19:598:037:09
8:22
#13616
25.2M
25.20 mi13:55:593:23:278:043:28
10:03
#13684
Finish
26.22 mi14:04:133:31:418:058:14
8:05
#13663
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi16899111611116113627(Top 48%)9785(Top 61%)9785(Top 594%)
10K6.21 mi3.10 mi15558+134110638+52310638+52314196(Top 50%)10080(Top 63%)10080(Top 612%)
15K9.32 mi3.11 mi14893+66510357+28110357+28113627(Top 48%)9785(Top 61%)9785(Top 594%)
20K12.43 mi3.11 mi14650+24310233+12410233+12414090(Top 50%)9907(Top 62%)9907(Top 601%)
Half13.11 mi0.68 mi14629+2110220+1310220+1314342(Top 50%)10035(Top 62%)10035(Top 609%)
25K15.53 mi2.42 mi14274+35510030+19010030+19012680(Top 45%)9161(Top 57%)9161(Top 556%)
30K18.64 mi3.11 mi14015+2599861+1699861+16913297(Top 47%)9262(Top 58%)9262(Top 562%)
20M20.00 mi1.36 mi14019-49828+339828+3314474(Top 51%)9669(Top 60%)9669(Top 587%)
21M21.00 mi1.00 mi13854+1659727+1019727+10111782(Top 41%)8274(Top 51%)8274(Top 502%)
35K21.75 mi0.75 mi13795+599678+499678+4912806(Top 45%)8718(Top 54%)8718(Top 529%)
23M23.00 mi1.25 mi13726+699613+659613+6512912(Top 45%)8658(Top 54%)8658(Top 525%)
24M24.00 mi1.00 mi13677+499561+529561+5212671(Top 45%)8497(Top 53%)8497(Top 516%)
40K24.85 mi0.85 mi13616+619510+519510+5112523(Top 44%)8293(Top 51%)8293(Top 503%)
25.2M25.20 mi0.35 mi13684-689523-139523-1317201(Top 61%)10442(Top 65%)10442(Top 634%)
Finish26.22 mi1.02 mi13663+219493+309493+3013421(Top 47%)8729(Top 54%)8729(Top 530%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21stories
+97ft-345ft

Overall

13627

Males

9785

M55-59

9785

5K→10K

3.1 - 6.2 mi

Top 50%
×5stories
+79ft-138ft

Overall

14196

Males

10080

M55-59

10080

10K→15K

6.2 - 9.3 mi

Top 48%
×3stories
+67ft-78ft

Overall

13627

Males

9785

M55-59

9785

15K→20K

9.3 - 12.4 mi

Top 50%
×5stories
+106ft-86ft

Overall

14090

Males

9907

M55-59

9907

20K→Half

12.4 - 13.1 mi

Top 50%
×2stories
+19ft-37ft

Overall

14342

Males

10035

M55-59

10035

Half→25K

13.1 - 15.5 mi

Top 45%
×4stories
+66ft-88ft

Overall

12680

Males

9161

M55-59

9161

25K→30K

15.5 - 18.6 mi

Top 47%
×9stories
+181ft-148ft

Overall

13297

Males

9262

M55-59

9262

30K→20M

18.6 - 20.0 mi

Top 51%
×5stories
+64ft-50ft

Overall

14474

Males

9669

M55-59

9669

20M→21M

20.0 - 21.0 mi

Top 41%
×8stories
+106ft-24ft

Overall

11782

Males

8274

M55-59

8274

21M→35K

21.0 - 21.8 mi

Top 45%
×7stories
+17ft-86ft

Overall

12806

Males

8718

M55-59

8718

35K→23M

21.8 - 23.0 mi

Top 45%
×5stories
+23ft-63ft

Overall

12912

Males

8658

M55-59

8658

23M→24M

23.0 - 24.0 mi

Top 45%
×6stories
+12ft-82ft

Overall

12671

Males

8497

M55-59

8497

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

12523

Males

8293

M55-59

8293

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

17201

Males

10442

M55-59

10442

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2stories
+22ft-21ft

Overall

13421

Males

8729

M55-59

8729

Passing Analysis

Category:
Athletes Passed
4013
Passed By
777
Net Change
+3236
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16899
5K → 10K136726+1341#16899#15558
10K → 15K68217+665#15558#14893
15K → 20K31875+243#14893#14650
20K → Half4726+21#14650#14629
Half → 25K37318+355#14629#14274
25K → 30K382123+259#14274#14015
30K → 20M121125-4#14015#14019
20M → 21M19025+165#14019#13854
21M → 35K8627+59#13854#13795
35K → 23M14071+69#13795#13726
23M → 24M11162+49#13726#13677
24M → 40K11049+61#13677#13616
40K → 25.2M1785-68#13616#13684
25.2M → Finish6948+21#13684#13663
TOTALS4013777+3236
📊

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