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BOSTON MARATHON 2023

Ernest Yang

Bib: 27134•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Division (M18-39)
#0 / 5285
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
13:08/mi
40:47
↑ 97↓ 3451.5%
10K· 6.21 mi
12:49/mi
1:20:37
↑ 79↓ 1380.4%
15K· 9.32 mi
13:05/mi
2:01:16
↑ 67↓ 78
20K· 12.43 mi
12:43/mi
2:40:47
↑ 106↓ 860.1%
Half· 13.11 mi
12:14/mi
2:49:08
↑ 19↓ 370.5%
25K· 15.53 mi
12:49/mi
3:20:13
↑ 66↓ 880.2%
30K· 18.64 mi
13:18/mi
4:01:33
↑ 181↓ 1480.2%
20M
13:28/mi
4:19:52
↑ 64↓ 500.2%
21M
13:28/mi
4:33:20
↑ 106↓ 241.6%
35K· 21.75 mi
12:47/mi
4:42:54
↑ 17↓ 861.7%
23M
12:43/mi
4:58:49
↑ 23↓ 630.6%
24M
12:41/mi
5:11:30
↓ 821.3%
40K· 24.85 mi
12:53/mi
5:22:31
↓ 200.3%
25.2M
14:13/mi
5:27:25
↑ 13↓ 160.2%
Finish· 26.22 mi
13:20/mi
5:41:00
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:49:08
Pace12:54 /mi
2nd Half
Distance13.11 mi
Time2:51:52
Pace13:07 /mi
📊Positive Split: 1.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:58:2040:4713:0840:47
13:08
-
10K
6.21 mi12:38:101:20:3712:5839:50
12:49
-0:19
15K
9.32 mi13:18:492:01:1613:0140:39
13:05
+0:16
20K
12.43 mi13:58:202:40:4712:5639:31
12:43
-0:22
Half
13.11 mi14:06:412:49:0812:548:21
12:14
-0:29
25K
15.53 mi14:37:463:20:1312:5331:05
12:49
+0:35
30K
18.64 mi15:19:064:01:3312:5741:20
13:18
+0:29
20M
20.00 mi15:37:254:19:5213:0018:19
13:28
+0:10
21M
21.00 mi15:50:534:33:2013:0113:28
13:28
0:00
35K
21.75 mi16:00:274:42:5413:009:34
12:47
-0:41
23M
23.00 mi16:16:224:58:4913:0015:55
12:43
-0:04
24M
24.00 mi16:29:035:11:3012:5912:41
12:41
-0:02
40K
24.85 mi16:40:045:22:3112:5911:01
12:53
+0:12
25.2M
25.20 mi16:44:585:27:2513:004:54
14:13
+1:20
Finish
26.22 mi16:58:335:41:0013:0113:35
13:20
-0:53

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

12:14 /mi

Average Pace

13:01 /mi

Slowest Pace

14:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

5:04:19

89% of race

Time at Steady Pace

36:41

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 13:00 /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 mi11:58:2040:4713:0840:47
13:08
#26595
10K
6.21 mi12:38:101:20:3712:5839:50
12:49
#26581
15K
9.32 mi13:18:492:01:1613:0140:39
13:05
#26569
20K
12.43 mi13:58:202:40:4712:5639:31
12:43
#26535
Half
13.11 mi14:06:412:49:0812:548:21
12:14
#26527
25K
15.53 mi14:37:463:20:1312:5331:05
12:49
#26465
30K
18.64 mi15:19:064:01:3312:5741:20
13:18
#26370
20M
20.00 mi15:37:254:19:5213:0018:19
13:28
#26335
21M
21.00 mi15:50:534:33:2013:0113:28
13:28
#26289
35K
21.75 mi16:00:274:42:5413:009:34
12:47
#26260
23M
23.00 mi16:16:224:58:4913:0015:55
12:43
#26209
24M
24.00 mi16:29:035:11:3012:5912:41
12:41
#26183
40K
24.85 mi16:40:045:22:3112:5911:01
12:53
#26151
25.2M
25.20 mi16:44:585:27:2513:004:54
14:13
#26143
Finish
26.22 mi16:58:335:41:0013:0113:35
13:20
#26157
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi26595151591515926501(Top 100%)15119(Top 100%)15119(Top 286%)
10K6.21 mi3.10 mi26581+1415151+815151+826531(Top 100%)15127(Top 100%)15127(Top 286%)
15K9.32 mi3.11 mi26569+1215144+715144+726501(Top 100%)15119(Top 100%)15119(Top 286%)
20K12.43 mi3.11 mi26535+3415125+1915125+1926094(Top 98%)14962(Top 99%)14962(Top 283%)
Half13.11 mi0.68 mi26527+815121+415121+426023(Top 98%)14931(Top 98%)14931(Top 283%)
25K15.53 mi2.42 mi26465+6215106+1515106+1525762(Top 97%)14802(Top 98%)14802(Top 280%)
30K18.64 mi3.11 mi26370+9515076+3015076+3025638(Top 96%)14700(Top 97%)14700(Top 278%)
20M20.00 mi1.36 mi26335+3515059+1715059+1725531(Top 96%)14632(Top 96%)14632(Top 277%)
21M21.00 mi1.00 mi26289+4615040+1915040+1924558(Top 92%)14162(Top 93%)14162(Top 268%)
35K21.75 mi0.75 mi26260+2915022+1815022+1825404(Top 95%)14520(Top 96%)14520(Top 275%)
23M23.00 mi1.25 mi26209+5114996+2614996+2624807(Top 93%)14251(Top 94%)14251(Top 270%)
24M24.00 mi1.00 mi26183+2614983+1314983+1325229(Top 95%)14412(Top 95%)14412(Top 273%)
40K24.85 mi0.85 mi26151+3214971+1214971+1224840(Top 93%)14229(Top 94%)14229(Top 269%)
25.2M25.20 mi0.35 mi26143+814966+514966+525153(Top 94%)14361(Top 95%)14361(Top 272%)
Finish26.22 mi1.02 mi26157-1414969-314969-326124(Top 98%)14870(Top 98%)14870(Top 281%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 100%
×21story building
+97ft-345ft

Overall

26501

Males

15119

M18-39

15119

5K→10K

3.1 - 6.2 mi

Top 100%
×5story building
+79ft-138ft

Overall

26531

Males

15127

M18-39

15127

10K→15K

6.2 - 9.3 mi

Top 100%
×3story building
+67ft-78ft

Overall

26501

Males

15119

M18-39

15119

15K→20K

9.3 - 12.4 mi

Top 98%
×5story building
+106ft-86ft

Overall

26094

Males

14962

M18-39

14962

20K→Half

12.4 - 13.1 mi

Top 98%
×2story building
+19ft-37ft

Overall

26023

Males

14931

M18-39

14931

Half→25K

13.1 - 15.5 mi

Top 97%
×4story building
+66ft-88ft

Overall

25762

Males

14802

M18-39

14802

25K→30K

15.5 - 18.6 mi

Top 96%
×9story building
+181ft-148ft

Overall

25638

Males

14700

M18-39

14700

30K→20M

18.6 - 20.0 mi

Top 96%
×5story building
+64ft-50ft

Overall

25531

Males

14632

M18-39

14632

20M→21M

20.0 - 21.0 mi

Top 92%
×8story building
+106ft-24ft

Overall

24558

Males

14162

M18-39

14162

21M→35K

21.0 - 21.8 mi

Top 95%
×7story building
+17ft-86ft

Overall

25404

Males

14520

M18-39

14520

35K→23M

21.8 - 23.0 mi

Top 93%
×5story building
+23ft-63ft

Overall

24807

Males

14251

M18-39

14251

23M→24M

23.0 - 24.0 mi

Top 95%
×6story building
+12ft-82ft

Overall

25229

Males

14412

M18-39

14412

24M→40K

24.0 - 24.9 mi

Top 93%
×1story
+6ft-20ft

Overall

24840

Males

14229

M18-39

14229

40K→25.2M

24.9 - 25.2 mi

Top 94%
×1story
+13ft-16ft

Overall

25153

Males

14361

M18-39

14361

25.2M→Finish

25.2 - 26.2 mi

Top 98%
×2story building
+22ft-21ft

Overall

26124

Males

14870

M18-39

14870

Passing Analysis

Category:
Athletes Passed
485
Passed By
47
Net Change
+438
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26595
5K → 10K195+14#26595#26581
10K → 15K153+12#26581#26569
15K → 20K362+34#26569#26535
20K → Half80+8#26535#26527
Half → 25K620+62#26527#26465
25K → 30K972+95#26465#26370
30K → 20M361+35#26370#26335
20M → 21M493+46#26335#26289
21M → 35K334+29#26289#26260
35K → 23M521+51#26260#26209
23M → 24M293+26#26209#26183
24M → 40K353+32#26183#26151
40K → 25.2M80+8#26151#26143
25.2M → Finish620-14#26143#26157
TOTALS48547+438
📊

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