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BOSTON MARATHON 2023

Shaohua Yang

Bib: 9553•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 33%
Gender (Male)
#0 / 15176
Top 48%
Masters (Masters Men)
#0 / 9891
Top 36%
Division (M45-49)
#0 / 2252
Top 50%
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
7:33/mi
23:28
↑ 97↓ 3451.5%
10K· 6.21 mi
7:15/mi
45:58
↑ 79↓ 1380.4%
15K· 9.32 mi
7:21/mi
1:08:47
↑ 67↓ 78
20K· 12.43 mi
7:33/mi
1:32:13
↑ 106↓ 860.1%
Half· 13.11 mi
7:26/mi
1:37:17
↑ 19↓ 370.5%
25K· 15.53 mi
7:36/mi
1:55:43
↑ 66↓ 880.2%
30K· 18.64 mi
7:49/mi
2:20:00
↑ 181↓ 1480.2%
20M
7:55/mi
2:30:45
↑ 64↓ 500.2%
21M
8:19/mi
2:39:04
↑ 106↓ 241.6%
35K· 21.75 mi
7:33/mi
2:44:43
↑ 17↓ 861.7%
23M
7:50/mi
2:54:32
↑ 23↓ 630.6%
24M
7:24/mi
3:01:56
↓ 821.3%
40K· 24.85 mi
7:31/mi
3:08:22
↓ 200.3%
25.2M
8:19/mi
3:11:14
↑ 13↓ 160.2%
Finish· 26.22 mi
7:29/mi
3:18:52
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:17
Pace7:25 /mi
2nd Half
Distance13.11 mi
Time1:41:35
Pace7:45 /mi
📊Positive Split: 4.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:1723:287:3323:28
7:33
-
10K
6.21 mi11:11:4745:587:2422:30
7:15
-0:18
15K
9.32 mi11:34:361:08:477:2322:49
7:21
+0:06
20K
12.43 mi11:58:021:32:137:2523:26
7:33
+0:12
Half
13.11 mi12:03:061:37:177:255:04
7:26
-0:07
25K
15.53 mi12:21:321:55:437:2718:26
7:36
+0:10
30K
18.64 mi12:45:492:20:007:3124:17
7:49
+0:13
20M
20.00 mi12:56:342:30:457:3210:45
7:55
+0:06
21M
21.00 mi13:04:532:39:047:348:19
8:19
+0:24
35K
21.75 mi13:10:322:44:437:345:39
7:33
-0:46
23M
23.00 mi13:20:212:54:327:359:49
7:50
+0:17
24M
24.00 mi13:27:453:01:567:357:24
7:24
-0:26
40K
24.85 mi13:34:113:08:227:356:26
7:31
+0:07
25.2M
25.20 mi13:37:033:11:147:352:52
8:19
+0:48
Finish
26.22 mi13:44:413:18:527:357:38
7:29
-0:50

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

7:15 /mi

Average Pace

7:35 /mi

Slowest Pace

8:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:07:41

94% of race

Time at Steady Pace

11:11

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:35 /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 mi10:49:1723:287:3323:28
7:33
#10089
10K
6.21 mi11:11:4745:587:2422:30
7:15
#9161
15K
9.32 mi11:34:361:08:477:2322:49
7:21
#9042
20K
12.43 mi11:58:021:32:137:2523:26
7:33
#9151
Half
13.11 mi12:03:061:37:177:255:04
7:26
#9177
25K
15.53 mi12:21:321:55:437:2718:26
7:36
#9219
30K
18.64 mi12:45:492:20:007:3124:17
7:49
#9231
20M
20.00 mi12:56:342:30:457:3210:45
7:55
#9257
21M
21.00 mi13:04:532:39:047:348:19
8:19
#9218
35K
21.75 mi13:10:322:44:437:345:39
7:33
#9187
23M
23.00 mi13:20:212:54:327:359:49
7:50
#9140
24M
24.00 mi13:27:453:01:567:357:24
7:24
#9027
40K
24.85 mi13:34:113:08:227:356:26
7:31
#8916
25.2M
25.20 mi13:37:033:11:147:352:52
8:19
#8885
Finish
26.22 mi13:44:413:18:527:357:38
7:29
#8843
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi10089817181718899(Top 33%)7476(Top 49%)7476(Top 332%)
10K6.21 mi3.10 mi9161+9287673+4987673+4988412(Top 32%)7202(Top 47%)7202(Top 320%)
15K9.32 mi3.11 mi9042+1197586+877586+878899(Top 33%)7476(Top 49%)7476(Top 332%)
20K12.43 mi3.11 mi9151-1097646-607646-609639(Top 36%)7875(Top 52%)7875(Top 350%)
Half13.11 mi0.68 mi9177-267658-127658-129559(Top 36%)7840(Top 52%)7840(Top 348%)
25K15.53 mi2.42 mi9219-427676-187676-189543(Top 36%)7729(Top 51%)7729(Top 343%)
30K18.64 mi3.11 mi9231-127646+307646+309473(Top 36%)7540(Top 50%)7540(Top 335%)
20M20.00 mi1.36 mi9257-267628+187628+189608(Top 36%)7524(Top 50%)7524(Top 334%)
21M21.00 mi1.00 mi9218+397585+437585+439300(Top 35%)7237(Top 48%)7237(Top 321%)
35K21.75 mi0.75 mi9187+317552+337552+338886(Top 33%)7010(Top 46%)7010(Top 311%)
23M23.00 mi1.25 mi9140+477494+587494+588667(Top 33%)6793(Top 45%)6793(Top 302%)
24M24.00 mi1.00 mi9027+1137409+857409+857057(Top 27%)5753(Top 38%)5753(Top 255%)
40K24.85 mi0.85 mi8916+1117322+877322+876856(Top 26%)5554(Top 37%)5554(Top 247%)
25.2M25.20 mi0.35 mi8885+317294+287294+288342(Top 31%)6374(Top 42%)6374(Top 283%)
Finish26.22 mi1.02 mi8843+427256+387256+388464(Top 32%)6440(Top 42%)6440(Top 286%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21story building
+97ft-345ft

Overall

8899

Males

7476

M45-49

7476

5K→10K

3.1 - 6.2 mi

Top 32%
×5story building
+79ft-138ft

Overall

8412

Males

7202

M45-49

7202

10K→15K

6.2 - 9.3 mi

Top 33%
×3story building
+67ft-78ft

Overall

8899

Males

7476

M45-49

7476

15K→20K

9.3 - 12.4 mi

Top 36%
×5story building
+106ft-86ft

Overall

9639

Males

7875

M45-49

7875

20K→Half

12.4 - 13.1 mi

Top 36%
×2story building
+19ft-37ft

Overall

9559

Males

7840

M45-49

7840

Half→25K

13.1 - 15.5 mi

Top 36%
×4story building
+66ft-88ft

Overall

9543

Males

7729

M45-49

7729

25K→30K

15.5 - 18.6 mi

Top 36%
×9story building
+181ft-148ft

Overall

9473

Males

7540

M45-49

7540

30K→20M

18.6 - 20.0 mi

Top 36%
×5story building
+64ft-50ft

Overall

9608

Males

7524

M45-49

7524

20M→21M

20.0 - 21.0 mi

Top 35%
×8story building
+106ft-24ft

Overall

9300

Males

7237

M45-49

7237

21M→35K

21.0 - 21.8 mi

Top 33%
×7story building
+17ft-86ft

Overall

8886

Males

7010

M45-49

7010

35K→23M

21.8 - 23.0 mi

Top 33%
×5story building
+23ft-63ft

Overall

8667

Males

6793

M45-49

6793

23M→24M

23.0 - 24.0 mi

Top 27%
×6story building
+12ft-82ft

Overall

7057

Males

5753

M45-49

5753

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

6856

Males

5554

M45-49

5554

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8342

Males

6374

M45-49

6374

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2story building
+22ft-21ft

Overall

8464

Males

6440

M45-49

6440

Passing Analysis

Category:
Athletes Passed
2251*
Passed By
1005
Net Change
+1246
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10089
5K → 10K971*43+928#10089#9161
10K → 15K21091+119#9161#9042
15K → 20K93202-109#9042#9151
20K → Half1339-26#9151#9177
Half → 25K103145-42#9177#9219
25K → 30K168180-12#9219#9231
30K → 20M6692-26#9231#9257
20M → 21M10162+39#9257#9218
21M → 35K5625+31#9218#9187
35K → 23M10659+47#9187#9140
23M → 24M12411+113#9140#9027
24M → 40K1187+111#9027#8916
40K → 25.2M409+31#8916#8885
25.2M → Finish8240+42#8885#8843
TOTALS2251*1005+1246

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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