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BOSTON MARATHON 2023

Yunzhi Gu

Bib: 3275•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 12%
Gender (Male)
#0 / 15176
Top 20%
Masters (Masters Men)
#0 / 9891
Top 8%
Division (M45-49)
#0 / 2252
Top 9%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:57
Rank: #4053
Start → 5K
20:57 | 6:45/mi
10K· 6.21 mi
41:11
Rank: #3369 (+684)
5K → 10K
20:14 | 6:31/mi
15K· 9.32 mi
1:01:46
Rank: #3398 (-29)
10K → 15K
20:35 | 6:38/mi
20K· 12.43 mi
1:22:49
Rank: #3546 (-148)
15K → 20K
21:03 | 6:47/mi
Half· 13.11 mi
1:27:24
Rank: #3586 (-40)
20K → Half
4:35 | 6:43/mi
25K· 15.53 mi
1:43:53
Rank: #3655 (-69)
Half → 25K
16:29 | 6:48/mi
30K· 18.64 mi
2:05:09
Rank: #3554 (+101)
25K → 30K
21:16 | 6:51/mi
20M
2:14:29
Rank: #3486 (+68)
30K → 20M
9:20 | 6:52/mi
21M
2:21:45
Rank: #3450 (+36)
20M → 21M
7:16 | 7:16/mi
35K· 21.75 mi
2:26:36
Rank: #3366 (+84)
21M → 35K
4:51 | 6:29/mi
23M
2:35:10
Rank: #3311 (+55)
35K → 23M
8:34 | 6:51/mi
24M
2:41:54
Rank: #3285 (+26)
23M → 24M
6:44 | 6:44/mi
40K· 24.85 mi
2:47:43
Rank: #3251 (+34)
24M → 40K
5:49 | 6:48/mi
25.2M
2:50:16
Rank: #3242 (+9)
40K → 25.2M
2:33 | 7:24/mi
Finish· 26.22 mi
2:57:04
Rank: #3208 (+34)
25.2M → Finish
6:48 | 6:40/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:24
Pace6:40 /mi
2nd Half
Distance13.11 mi
Time1:29:40
Pace6:50 /mi
📊Positive Split: 2.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:2720:576:4520:57
6:45
-
10K
6.21 mi10:42:4141:116:3820:14
6:31
-0:14
15K
9.32 mi11:03:161:01:466:3820:35
6:38
+0:07
20K
12.43 mi11:24:191:22:496:4021:03
6:47
+0:09
Half
13.11 mi11:28:541:27:246:404:35
6:43
-0:04
25K
15.53 mi11:45:231:43:536:4116:29
6:48
+0:05
30K
18.64 mi12:06:392:05:096:4321:16
6:51
+0:03
20M
20.00 mi12:15:592:14:296:439:20
6:52
+0:01
21M
21.00 mi12:23:152:21:456:457:16
7:16
+0:24
35K
21.75 mi12:28:062:26:366:444:51
6:29
-0:47
23M
23.00 mi12:36:402:35:106:458:34
6:51
+0:22
24M
24.00 mi12:43:242:41:546:456:44
6:44
-0:07
40K
24.85 mi12:49:132:47:436:455:49
6:48
+0:04
25.2M
25.20 mi12:51:462:50:166:452:33
7:24
+0:36
Finish
26.22 mi12:58:342:57:046:456:48
6:40
-0:44

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

6:29 /mi

Average Pace

6:45 /mi

Slowest Pace

7:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:47:15

94% of race

Time at Steady Pace

9:49

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:45 /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 mi10:22:2720:576:4520:57
6:45
#4053
10K
6.21 mi10:42:4141:116:3820:14
6:31
#3369
15K
9.32 mi11:03:161:01:466:3820:35
6:38
#3398
20K
12.43 mi11:24:191:22:496:4021:03
6:47
#3546
Half
13.11 mi11:28:541:27:246:404:35
6:43
#3586
25K
15.53 mi11:45:231:43:536:4116:29
6:48
#3655
30K
18.64 mi12:06:392:05:096:4321:16
6:51
#3554
20M
20.00 mi12:15:592:14:296:439:20
6:52
#3486
21M
21.00 mi12:23:152:21:456:457:16
7:16
#3450
35K
21.75 mi12:28:062:26:366:444:51
6:29
#3366
23M
23.00 mi12:36:402:35:106:458:34
6:51
#3311
24M
24.00 mi12:43:242:41:546:456:44
6:44
#3285
40K
24.85 mi12:49:132:47:436:455:49
6:48
#3251
25.2M
25.20 mi12:51:462:50:166:452:33
7:24
#3242
Finish
26.22 mi12:58:342:57:046:456:48
6:40
#3208
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi4053380038003503(Top 13%)3317(Top 22%)3317(Top 147%)
10K6.21 mi3.10 mi3369+6843188+6123188+6122882(Top 11%)2754(Top 18%)2754(Top 122%)
15K9.32 mi3.11 mi3398-293219-313219-313503(Top 13%)3317(Top 22%)3317(Top 147%)
20K12.43 mi3.11 mi3546-1483356-1373356-1374201(Top 16%)3932(Top 26%)3932(Top 175%)
Half13.11 mi0.68 mi3586-403394-383394-384427(Top 17%)4119(Top 27%)4119(Top 183%)
25K15.53 mi2.42 mi3655-693457-633457-634106(Top 15%)3846(Top 25%)3846(Top 171%)
30K18.64 mi3.11 mi3554+1013364+933364+933281(Top 12%)3091(Top 20%)3091(Top 137%)
20M20.00 mi1.36 mi3486+683296+683296+683218(Top 12%)3015(Top 20%)3015(Top 134%)
21M21.00 mi1.00 mi3450+363266+303266+303439(Top 13%)3197(Top 21%)3197(Top 142%)
35K21.75 mi0.75 mi3366+843187+793187+792348(Top 9%)2228(Top 15%)2228(Top 99%)
23M23.00 mi1.25 mi3311+553136+513136+512904(Top 11%)2714(Top 18%)2714(Top 121%)
24M24.00 mi1.00 mi3285+263111+253111+253276(Top 12%)3031(Top 20%)3031(Top 135%)
40K24.85 mi0.85 mi3251+343077+343077+342838(Top 11%)2612(Top 17%)2612(Top 116%)
25.2M25.20 mi0.35 mi3242+93066+113066+113361(Top 13%)3044(Top 20%)3044(Top 135%)
Finish26.22 mi1.02 mi3208+343034+323034+323340(Top 13%)2998(Top 20%)2998(Top 133%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 13%
×21stories
+97ft-345ft

Overall

3503

Males

3317

M45-49

3317

5K→10K

3.1 - 6.2 mi

Top 11%
×5stories
+79ft-138ft

Overall

2882

Males

2754

M45-49

2754

10K→15K

6.2 - 9.3 mi

Top 13%
×3stories
+67ft-78ft

Overall

3503

Males

3317

M45-49

3317

15K→20K

9.3 - 12.4 mi

Top 16%
×5stories
+106ft-86ft

Overall

4201

Males

3932

M45-49

3932

20K→Half

12.4 - 13.1 mi

Top 17%
×2stories
+19ft-37ft

Overall

4427

Males

4119

M45-49

4119

Half→25K

13.1 - 15.5 mi

Top 15%
×4stories
+66ft-88ft

Overall

4106

Males

3846

M45-49

3846

25K→30K

15.5 - 18.6 mi

Top 12%
×9stories
+181ft-148ft

Overall

3281

Males

3091

M45-49

3091

30K→20M

18.6 - 20.0 mi

Top 12%
×5stories
+64ft-50ft

Overall

3218

Males

3015

M45-49

3015

20M→21M

20.0 - 21.0 mi

Top 13%
×8stories
+106ft-24ft

Overall

3439

Males

3197

M45-49

3197

21M→35K

21.0 - 21.8 mi

Top 9%
×7stories
+17ft-86ft

Overall

2348

Males

2228

M45-49

2228

35K→23M

21.8 - 23.0 mi

Top 11%
×5stories
+23ft-63ft

Overall

2904

Males

2714

M45-49

2714

23M→24M

23.0 - 24.0 mi

Top 12%
×6stories
+12ft-82ft

Overall

3276

Males

3031

M45-49

3031

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

2838

Males

2612

M45-49

2612

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3361

Males

3044

M45-49

3044

25.2M→Finish

25.2 - 26.2 mi

Top 13%
×2stories
+22ft-21ft

Overall

3340

Males

2998

M45-49

2998

Passing Analysis

Category:
Athletes Passed
1576
Passed By
731
Net Change
+845
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4053
5K → 10K71228+684#4053#3369
10K → 15K80109-29#3369#3398
15K → 20K38186-148#3398#3546
20K → Half646-40#3546#3586
Half → 25K63132-69#3586#3655
25K → 30K15049+101#3655#3554
30K → 20M9325+68#3554#3486
20M → 21M7438+36#3486#3450
21M → 35K851+84#3450#3366
35K → 23M7520+55#3366#3311
23M → 24M5529+26#3311#3285
24M → 40K5925+34#3285#3251
40K → 25.2M2415+9#3251#3242
25.2M → Finish6228+34#3242#3208
TOTALS1576731+845
📊

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