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BOSTON MARATHON 2023

Junming Yu

Bib: 10793•M

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 23%
Gender (Male)
#0 / 15176
Top 36%
Masters (Masters Men)
#0 / 9891
Top 22%
Division (M45-49)
#0 / 2252
Top 28%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:10/mi
22:16
↑ 97↓ 3451.5%
10K· 6.21 mi
6:55/mi
43:44
↑ 79↓ 1380.4%
15K· 9.32 mi
6:59/mi
1:05:25
↑ 67↓ 78
20K· 12.43 mi
7:11/mi
1:27:45
↑ 106↓ 860.1%
Half· 13.11 mi
7:08/mi
1:32:37
↑ 19↓ 370.5%
25K· 15.53 mi
7:10/mi
1:49:59
↑ 66↓ 880.2%
30K· 18.64 mi
7:15/mi
2:12:32
↑ 181↓ 1480.2%
20M
7:21/mi
2:22:31
↑ 64↓ 500.2%
21M
7:44/mi
2:30:15
↑ 106↓ 241.6%
35K· 21.75 mi
7:13/mi
2:35:39
↑ 17↓ 861.7%
23M
7:29/mi
2:45:01
↑ 23↓ 630.6%
24M
7:21/mi
2:52:22
↓ 821.3%
40K· 24.85 mi
7:28/mi
2:58:45
↓ 200.3%
25.2M
8:10/mi
3:01:34
↑ 13↓ 160.2%
Finish· 26.22 mi
7:18/mi
3:09:00
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:37
Pace7:04 /mi
2nd Half
Distance13.11 mi
Time1:36:23
Pace7:21 /mi
📊Positive Split: 4.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:1922:167:1022:16
7:10
-
10K
6.21 mi11:09:4743:447:0221:28
6:55
-0:15
15K
9.32 mi11:31:281:05:257:0121:41
6:59
+0:04
20K
12.43 mi11:53:481:27:457:0422:20
7:11
+0:12
Half
13.11 mi11:58:401:32:377:044:52
7:08
-0:03
25K
15.53 mi12:16:021:49:597:0517:22
7:10
+0:02
30K
18.64 mi12:38:352:12:327:0722:33
7:15
+0:05
20M
20.00 mi12:48:342:22:317:089:59
7:21
+0:06
21M
21.00 mi12:56:182:30:157:097:44
7:44
+0:23
35K
21.75 mi13:01:422:35:397:095:24
7:13
-0:31
23M
23.00 mi13:11:042:45:017:109:22
7:29
+0:16
24M
24.00 mi13:18:252:52:227:117:21
7:21
-0:08
40K
24.85 mi13:24:482:58:457:126:23
7:28
+0:07
25.2M
25.20 mi13:27:373:01:347:122:49
8:10
+0:42
Finish
26.22 mi13:35:033:09:007:137:26
7:18
-0:52

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

6:55 /mi

Average Pace

7:13 /mi

Slowest Pace

8:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:58:27

94% of race

Time at Steady Pace

7:44

4% of race

Time at Slower Pace

2:49

1% of race

Average Pace: 7:12 /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 mi10:48:1922:167:1022:16
7:10
#7293
10K
6.21 mi11:09:4743:447:0221:28
6:55
#6726
15K
9.32 mi11:31:281:05:257:0121:41
6:59
#6610
20K
12.43 mi11:53:481:27:457:0422:20
7:11
#6704
Half
13.11 mi11:58:401:32:377:044:52
7:08
#6734
25K
15.53 mi12:16:021:49:597:0517:22
7:10
#6664
30K
18.64 mi12:38:352:12:327:0722:33
7:15
#6455
20M
20.00 mi12:48:342:22:317:089:59
7:21
#6385
21M
21.00 mi12:56:182:30:157:097:44
7:44
#6316
35K
21.75 mi13:01:422:35:397:095:24
7:13
#6292
23M
23.00 mi13:11:042:45:017:109:22
7:29
#6244
24M
24.00 mi13:18:252:52:227:117:21
7:21
#6204
40K
24.85 mi13:24:482:58:457:126:23
7:28
#6185
25.2M
25.20 mi13:27:373:01:347:122:49
8:10
#6181
Finish
26.22 mi13:35:033:09:007:137:26
7:18
#6187
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi7293649164916418(Top 24%)5787(Top 38%)5787(Top 257%)
10K6.21 mi3.10 mi6726+5676058+4336058+4336198(Top 23%)5620(Top 37%)5620(Top 250%)
15K9.32 mi3.11 mi6610+1165958+1005958+1006418(Top 24%)5787(Top 38%)5787(Top 257%)
20K12.43 mi3.11 mi6704-946018-606018-607011(Top 26%)6217(Top 41%)6217(Top 276%)
Half13.11 mi0.68 mi6734-306047-296047-297322(Top 28%)6442(Top 42%)6442(Top 286%)
25K15.53 mi2.42 mi6664+705977+705977+706443(Top 24%)5755(Top 38%)5755(Top 256%)
30K18.64 mi3.11 mi6455+2095809+1685809+1685813(Top 22%)5234(Top 34%)5234(Top 232%)
20M20.00 mi1.36 mi6385+705743+665743+665895(Top 22%)5214(Top 34%)5214(Top 232%)
21M21.00 mi1.00 mi6316+695684+595684+595800(Top 22%)5052(Top 33%)5052(Top 224%)
35K21.75 mi0.75 mi6292+245659+255659+256597(Top 25%)5634(Top 37%)5634(Top 250%)
23M23.00 mi1.25 mi6244+485608+515608+516298(Top 24%)5370(Top 35%)5370(Top 238%)
24M24.00 mi1.00 mi6204+405566+425566+426703(Top 25%)5542(Top 37%)5542(Top 246%)
40K24.85 mi0.85 mi6185+195540+265540+266467(Top 24%)5313(Top 35%)5313(Top 236%)
25.2M25.20 mi0.35 mi6181+45531+95531+97422(Top 28%)5822(Top 38%)5822(Top 259%)
Finish26.22 mi1.02 mi6187-65520+115520+117058(Top 27%)5597(Top 37%)5597(Top 249%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 24%
×21story building
+97ft-345ft

Overall

6418

Males

5787

M45-49

5787

5K→10K

3.1 - 6.2 mi

Top 23%
×5story building
+79ft-138ft

Overall

6198

Males

5620

M45-49

5620

10K→15K

6.2 - 9.3 mi

Top 24%
×3story building
+67ft-78ft

Overall

6418

Males

5787

M45-49

5787

15K→20K

9.3 - 12.4 mi

Top 26%
×5story building
+106ft-86ft

Overall

7011

Males

6217

M45-49

6217

20K→Half

12.4 - 13.1 mi

Top 28%
×2story building
+19ft-37ft

Overall

7322

Males

6442

M45-49

6442

Half→25K

13.1 - 15.5 mi

Top 24%
×4story building
+66ft-88ft

Overall

6443

Males

5755

M45-49

5755

25K→30K

15.5 - 18.6 mi

Top 22%
×9story building
+181ft-148ft

Overall

5813

Males

5234

M45-49

5234

30K→20M

18.6 - 20.0 mi

Top 22%
×5story building
+64ft-50ft

Overall

5895

Males

5214

M45-49

5214

20M→21M

20.0 - 21.0 mi

Top 22%
×8story building
+106ft-24ft

Overall

5800

Males

5052

M45-49

5052

21M→35K

21.0 - 21.8 mi

Top 25%
×7story building
+17ft-86ft

Overall

6597

Males

5634

M45-49

5634

35K→23M

21.8 - 23.0 mi

Top 24%
×5story building
+23ft-63ft

Overall

6298

Males

5370

M45-49

5370

23M→24M

23.0 - 24.0 mi

Top 25%
×6story building
+12ft-82ft

Overall

6703

Males

5542

M45-49

5542

24M→40K

24.0 - 24.9 mi

Top 24%
×1story
+6ft-20ft

Overall

6467

Males

5313

M45-49

5313

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

7422

Males

5822

M45-49

5822

25.2M→Finish

25.2 - 26.2 mi

Top 27%
×2story building
+22ft-21ft

Overall

7058

Males

5597

M45-49

5597

Passing Analysis

Category:
Athletes Passed
1738
Passed By
632
Net Change
+1106
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7293
5K → 10K60336+567#7293#6726
10K → 15K17761+116#6726#6610
15K → 20K75169-94#6610#6704
20K → Half939-30#6704#6734
Half → 25K11646+70#6734#6664
25K → 30K23021+209#6664#6455
30K → 20M9424+70#6455#6385
20M → 21M9324+69#6385#6316
21M → 35K4420+24#6316#6292
35K → 23M9143+48#6292#6244
23M → 24M8040+40#6244#6204
24M → 40K5536+19#6204#6185
40K → 25.2M2622+4#6185#6181
25.2M → Finish4551-6#6181#6187
TOTALS1738632+1106
📊

Passing Visuals

Category:
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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