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BOSTON MARATHON 2023

Guochun Mo

Bib: 14874•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 46%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
Top 36%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:15
Rank: #12376
Start → 5K
24:15 | 7:48/mi
10K· 6.21 mi
47:07
Rank: #10766 (+1610)
5K → 10K
22:52 | 7:22/mi
15K· 9.32 mi
1:10:08
Rank: #10275 (+491)
10K → 15K
23:01 | 7:25/mi
20K· 12.43 mi
1:33:44
Rank: #10213 (+62)
15K → 20K
23:36 | 7:36/mi
Half· 13.11 mi
1:38:56
Rank: #10254 (-41)
20K → Half
5:12 | 7:37/mi
25K· 15.53 mi
1:58:18
Rank: #10612 (-358)
Half → 25K
19:22 | 7:59/mi
30K· 18.64 mi
2:24:42
Rank: #11271 (-659)
25K → 30K
26:24 | 8:30/mi
20M
2:36:45
Rank: #11693 (-422)
30K → 20M
12:03 | 8:52/mi
21M
2:46:43
Rank: #12168 (-475)
20M → 21M
9:58 | 9:58/mi
35K· 21.75 mi
2:52:56
Rank: #12242 (-74)
21M → 35K
6:13 | 8:19/mi
23M
3:03:38
Rank: #12311 (-69)
35K → 23M
10:42 | 8:33/mi
24M
3:12:01
Rank: #12380 (-69)
23M → 24M
8:23 | 8:23/mi
40K· 24.85 mi
3:19:07
Rank: #12370 (+10)
24M → 40K
7:06 | 8:18/mi
25.2M
3:22:13
Rank: #12369 (+1)
40K → 25.2M
3:06 | 8:59/mi
Finish· 26.22 mi
3:30:18
Rank: #12357 (+12)
25.2M → Finish
8:05 | 7:56/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:56
Pace7:33 /mi
2nd Half
Distance13.11 mi
Time1:51:22
Pace8:30 /mi
📊Positive Split: 12.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:5624:157:4824:15
7:48
-
10K
6.21 mi11:16:4847:077:3522:52
7:22
-0:26
15K
9.32 mi11:39:491:10:087:3123:01
7:25
+0:03
20K
12.43 mi12:03:251:33:447:3323:36
7:36
+0:11
Half
13.11 mi12:08:371:38:567:335:12
7:37
+0:01
25K
15.53 mi12:27:591:58:187:3719:22
7:59
+0:22
30K
18.64 mi12:54:232:24:427:4626:24
8:30
+0:31
20M
20.00 mi13:06:262:36:457:5012:03
8:52
+0:22
21M
21.00 mi13:16:242:46:437:569:58
9:58
+1:06
35K
21.75 mi13:22:372:52:567:576:13
8:19
-1:39
23M
23.00 mi13:33:193:03:387:5910:42
8:33
+0:14
24M
24.00 mi13:41:423:12:018:008:23
8:23
-0:10
40K
24.85 mi13:48:483:19:078:017:06
8:18
-0:05
25.2M
25.20 mi13:51:543:22:138:013:06
8:59
+0:41
Finish
26.22 mi13:59:593:30:188:028:05
7:56
-1:03

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

7:22 /mi

Average Pace

8:02 /mi

Slowest Pace

9:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:47:01

51% of race

Time at Steady Pace

1:18:10

37% of race

Time at Slower Pace

25:07

12% of race

Average Pace: 8:01 /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 mi10:53:5624:157:4824:15
7:48
#12376
10K
6.21 mi11:16:4847:077:3522:52
7:22
#10766
15K
9.32 mi11:39:491:10:087:3123:01
7:25
#10275
20K
12.43 mi12:03:251:33:447:3323:36
7:36
#10213
Half
13.11 mi12:08:371:38:567:335:12
7:37
#10254
25K
15.53 mi12:27:591:58:187:3719:22
7:59
#10612
30K
18.64 mi12:54:232:24:427:4626:24
8:30
#11271
20M
20.00 mi13:06:262:36:457:5012:03
8:52
#11693
21M
21.00 mi13:16:242:46:437:569:58
9:58
#12168
35K
21.75 mi13:22:372:52:567:576:13
8:19
#12242
23M
23.00 mi13:33:193:03:387:5910:42
8:33
#12311
24M
24.00 mi13:41:423:12:018:008:23
8:23
#12380
40K
24.85 mi13:48:483:19:078:017:06
8:18
#12370
25.2M
25.20 mi13:51:543:22:138:013:06
8:59
#12369
Finish
26.22 mi13:59:593:30:188:028:05
7:56
#12357
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi12376927392739410(Top 35%)7814(Top 51%)7814(Top 550%)
10K6.21 mi3.10 mi10766+16108542+7318542+7319303(Top 35%)7750(Top 51%)7750(Top 545%)
15K9.32 mi3.11 mi10275+4918317+2258317+2259410(Top 35%)7814(Top 51%)7814(Top 550%)
20K12.43 mi3.11 mi10213+628268+498268+4910064(Top 38%)8110(Top 53%)8110(Top 570%)
Half13.11 mi0.68 mi10254-418287-198287-1911191(Top 42%)8723(Top 57%)8723(Top 613%)
25K15.53 mi2.42 mi10612-3588445-1588445-15812630(Top 47%)9180(Top 60%)9180(Top 646%)
30K18.64 mi3.11 mi11271-6598681-2368681-23614285(Top 54%)9761(Top 64%)9761(Top 686%)
20M20.00 mi1.36 mi11693-4228855-1748855-17415794(Top 59%)10322(Top 68%)10322(Top 726%)
21M21.00 mi1.00 mi12168-4759046-1919046-19117894(Top 67%)11174(Top 74%)11174(Top 786%)
35K21.75 mi0.75 mi12242-749065-199065-1914111(Top 53%)9466(Top 62%)9466(Top 666%)
23M23.00 mi1.25 mi12311-699058+79058+713487(Top 51%)9135(Top 60%)9135(Top 642%)
24M24.00 mi1.00 mi12380-699079-219079-2113734(Top 52%)9193(Top 61%)9193(Top 646%)
40K24.85 mi0.85 mi12370+109055+249055+2412040(Top 45%)8337(Top 55%)8337(Top 586%)
25.2M25.20 mi0.35 mi12369+19045+109045+1012399(Top 47%)8462(Top 56%)8462(Top 595%)
Finish26.22 mi1.02 mi12357+129017+289017+2811608(Top 44%)8101(Top 53%)8101(Top 570%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21stories
+97ft-345ft

Overall

9410

Males

7814

M55-59

7814

5K→10K

3.1 - 6.2 mi

Top 35%
×5stories
+79ft-138ft

Overall

9303

Males

7750

M55-59

7750

10K→15K

6.2 - 9.3 mi

Top 35%
×3stories
+67ft-78ft

Overall

9410

Males

7814

M55-59

7814

15K→20K

9.3 - 12.4 mi

Top 38%
×5stories
+106ft-86ft

Overall

10064

Males

8110

M55-59

8110

20K→Half

12.4 - 13.1 mi

Top 42%
×2stories
+19ft-37ft

Overall

11191

Males

8723

M55-59

8723

Half→25K

13.1 - 15.5 mi

Top 47%
×4stories
+66ft-88ft

Overall

12630

Males

9180

M55-59

9180

25K→30K

15.5 - 18.6 mi

Top 54%
×9stories
+181ft-148ft

Overall

14285

Males

9761

M55-59

9761

30K→20M

18.6 - 20.0 mi

Top 59%
×5stories
+64ft-50ft

Overall

15794

Males

10322

M55-59

10322

20M→21M

20.0 - 21.0 mi

Top 67%
×8stories
+106ft-24ft

Overall

17894

Males

11174

M55-59

11174

21M→35K

21.0 - 21.8 mi

Top 53%
×7stories
+17ft-86ft

Overall

14111

Males

9466

M55-59

9466

35K→23M

21.8 - 23.0 mi

Top 51%
×5stories
+23ft-63ft

Overall

13487

Males

9135

M55-59

9135

23M→24M

23.0 - 24.0 mi

Top 52%
×6stories
+12ft-82ft

Overall

13734

Males

9193

M55-59

9193

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

12040

Males

8337

M55-59

8337

40K→25.2M

24.9 - 25.2 mi

Top 47%
×1story
+13ft-16ft

Overall

12399

Males

8462

M55-59

8462

25.2M→Finish

25.2 - 26.2 mi

Top 44%
×2stories
+22ft-21ft

Overall

11608

Males

8101

M55-59

8101

Passing Analysis

Category:
Athletes Passed
2818*
Passed By
2799
Net Change
+19
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12376
5K → 10K162919+1610#12376#10766
10K → 15K53039+491#10766#10275
15K → 20K186*124+62#10275#10213
20K → Half1556-41#10213#10254
Half → 25K52410-358#10254#10612
25K → 30K56715-659#10612#11271
30K → 20M21443-422#11271#11693
20M → 21M12487-475#11693#12168
21M → 35K2498-74#12168#12242
35K → 23M73142-69#12242#12311
23M → 24M39108-69#12311#12380
24M → 40K6555+10#12380#12370
40K → 25.2M3736+1#12370#12369
25.2M → Finish7967+12#12369#12357
TOTALS2818*2799+19

* 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