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BOSTON MARATHON 2023

David Miao

Bib: 6655•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 17%
Gender (Male)
#0 / 15176
Top 27%
Masters (Masters Men)
#0 / 9891
Top 13%
Division (M55-59)
#0 / 1422
Top 3%
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
6:52/mi
21:21
↑ 97↓ 3451.5%
10K· 6.21 mi
6:48/mi
42:30
↑ 79↓ 1380.4%
15K· 9.32 mi
6:47/mi
1:03:33
↑ 67↓ 78
20K· 12.43 mi
6:51/mi
1:24:50
↑ 106↓ 860.1%
Half· 13.11 mi
6:47/mi
1:29:28
↑ 19↓ 370.5%
25K· 15.53 mi
6:51/mi
1:46:04
↑ 66↓ 880.2%
30K· 18.64 mi
7:05/mi
2:08:05
↑ 181↓ 1480.2%
20M
7:08/mi
2:17:46
↑ 64↓ 500.2%
21M
7:43/mi
2:25:29
↑ 106↓ 241.6%
35K· 21.75 mi
6:46/mi
2:30:33
↑ 17↓ 861.7%
23M
6:48/mi
2:39:04
↑ 23↓ 630.6%
24M
6:39/mi
2:45:43
↓ 821.3%
40K· 24.85 mi
6:52/mi
2:51:35
↓ 200.3%
25.2M
7:27/mi
2:54:09
↑ 13↓ 160.2%
Finish· 26.22 mi
6:41/mi
3:00:58
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:28
Pace6:49 /mi
2nd Half
Distance13.11 mi
Time1:31:30
Pace6:59 /mi
📊Positive Split: 2.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:1621:216:5221:21
6:52
-
10K
6.21 mi10:45:2542:306:5021:09
6:48
-0:04
15K
9.32 mi11:06:281:03:336:4921:03
6:47
-0:01
20K
12.43 mi11:27:451:24:506:5021:17
6:51
+0:04
Half
13.11 mi11:32:231:29:286:494:38
6:47
-0:04
25K
15.53 mi11:48:591:46:046:5016:36
6:51
+0:04
30K
18.64 mi12:11:002:08:056:5222:01
7:05
+0:14
20M
20.00 mi12:20:412:17:466:539:41
7:08
+0:03
21M
21.00 mi12:28:242:25:296:567:43
7:43
+0:35
35K
21.75 mi12:33:282:30:336:555:04
6:46
-0:57
23M
23.00 mi12:41:592:39:046:558:31
6:48
+0:02
24M
24.00 mi12:48:382:45:436:546:39
6:39
-0:09
40K
24.85 mi12:54:302:51:356:545:52
6:52
+0:13
25.2M
25.20 mi12:57:042:54:096:552:34
7:27
+0:35
Finish
26.22 mi13:03:533:00:586:546:49
6:41
-0:46

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

6:39 /mi

Average Pace

6:54 /mi

Slowest Pace

7:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:50:41

94% of race

Time at Steady Pace

10:17

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:54 /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 mi10:24:1621:216:5221:21
6:52
#5320
10K
6.21 mi10:45:2542:306:5021:09
6:48
#5307
15K
9.32 mi11:06:281:03:336:4921:03
6:47
#5154
20K
12.43 mi11:27:451:24:506:5021:17
6:51
#5091
Half
13.11 mi11:32:231:29:286:494:38
6:47
#5103
25K
15.53 mi11:48:591:46:046:5016:36
6:51
#4971
30K
18.64 mi12:11:002:08:056:5222:01
7:05
#4938
20M
20.00 mi12:20:412:17:466:539:41
7:08
#4885
21M
21.00 mi12:28:242:25:296:567:43
7:43
#4936
35K
21.75 mi12:33:282:30:336:555:04
6:46
#4885
23M
23.00 mi12:41:592:39:046:558:31
6:48
#4695
24M
24.00 mi12:48:382:45:436:546:39
6:39
#4585
40K
24.85 mi12:54:302:51:356:545:52
6:52
#4498
25.2M
25.20 mi12:57:042:54:096:552:34
7:27
#4469
Finish
26.22 mi13:03:533:00:586:546:49
6:41
#4407
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi5320491849184866(Top 18%)4527(Top 30%)4527(Top 318%)
10K6.21 mi3.10 mi5307+134907+114907+115363(Top 20%)4948(Top 33%)4948(Top 348%)
15K9.32 mi3.11 mi5154+1534779+1284779+1284866(Top 18%)4527(Top 30%)4527(Top 318%)
20K12.43 mi3.11 mi5091+634724+554724+554911(Top 18%)4560(Top 30%)4560(Top 321%)
Half13.11 mi0.68 mi5103-124734-104734-105142(Top 19%)4752(Top 31%)4752(Top 334%)
25K15.53 mi2.42 mi4971+1324619+1154619+1154549(Top 17%)4236(Top 28%)4236(Top 298%)
30K18.64 mi3.11 mi4938+334594+254594+254848(Top 18%)4463(Top 29%)4463(Top 314%)
20M20.00 mi1.36 mi4885+534537+574537+574733(Top 18%)4323(Top 28%)4323(Top 304%)
21M21.00 mi1.00 mi4936-514578-414578-415686(Top 21%)4958(Top 33%)4958(Top 349%)
35K21.75 mi0.75 mi4885+514534+444534+444024(Top 15%)3699(Top 24%)3699(Top 260%)
23M23.00 mi1.25 mi4695+1904366+1684366+1682695(Top 10%)2528(Top 17%)2528(Top 178%)
24M24.00 mi1.00 mi4585+1104269+974269+972861(Top 11%)2662(Top 18%)2662(Top 187%)
40K24.85 mi0.85 mi4498+874191+784191+783135(Top 12%)2879(Top 19%)2879(Top 202%)
25.2M25.20 mi0.35 mi4469+294163+284163+283645(Top 14%)3273(Top 22%)3273(Top 230%)
Finish26.22 mi1.02 mi4407+624108+554108+553457(Top 13%)3099(Top 20%)3099(Top 218%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21story building
+97ft-345ft

Overall

4866

Males

4527

M55-59

4527

5K→10K

3.1 - 6.2 mi

Top 20%
×5story building
+79ft-138ft

Overall

5363

Males

4948

M55-59

4948

10K→15K

6.2 - 9.3 mi

Top 18%
×3story building
+67ft-78ft

Overall

4866

Males

4527

M55-59

4527

15K→20K

9.3 - 12.4 mi

Top 18%
×5story building
+106ft-86ft

Overall

4911

Males

4560

M55-59

4560

20K→Half

12.4 - 13.1 mi

Top 19%
×2story building
+19ft-37ft

Overall

5142

Males

4752

M55-59

4752

Half→25K

13.1 - 15.5 mi

Top 17%
×4story building
+66ft-88ft

Overall

4549

Males

4236

M55-59

4236

25K→30K

15.5 - 18.6 mi

Top 18%
×9story building
+181ft-148ft

Overall

4848

Males

4463

M55-59

4463

30K→20M

18.6 - 20.0 mi

Top 18%
×5story building
+64ft-50ft

Overall

4733

Males

4323

M55-59

4323

20M→21M

20.0 - 21.0 mi

Top 21%
×8story building
+106ft-24ft

Overall

5686

Males

4958

M55-59

4958

21M→35K

21.0 - 21.8 mi

Top 15%
×7story building
+17ft-86ft

Overall

4024

Males

3699

M55-59

3699

35K→23M

21.8 - 23.0 mi

Top 10%
×5story building
+23ft-63ft

Overall

2695

Males

2528

M55-59

2528

23M→24M

23.0 - 24.0 mi

Top 11%
×6story building
+12ft-82ft

Overall

2861

Males

2662

M55-59

2662

24M→40K

24.0 - 24.9 mi

Top 12%
×1story
+6ft-20ft

Overall

3135

Males

2879

M55-59

2879

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

3645

Males

3273

M55-59

3273

25.2M→Finish

25.2 - 26.2 mi

Top 13%
×2story building
+22ft-21ft

Overall

3457

Males

3099

M55-59

3099

Passing Analysis

Category:
Athletes Passed
1601
Passed By
688
Net Change
+913
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5320
5K → 10K212199+13#5320#5307
10K → 15K20249+153#5307#5154
15K → 20K14178+63#5154#5091
20K → Half1527-12#5091#5103
Half → 25K16533+132#5103#4971
25K → 30K159126+33#4971#4938
30K → 20M9037+53#4938#4885
20M → 21M4293-51#4885#4936
21M → 35K6211+51#4936#4885
35K → 23M1933+190#4885#4695
23M → 24M1144+110#4695#4585
24M → 40K925+87#4585#4498
40K → 25.2M334+29#4498#4469
25.2M → Finish8119+62#4469#4407
TOTALS1601688+913
📊

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