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BOSTON MARATHON 2023

Dai In You

Bib: 31724•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M70-74)
#0 / 213
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
11:18/mi
35:06
↑ 97↓ 3451.5%
10K· 6.21 mi
11:07/mi
1:09:38
↑ 79↓ 1380.4%
15K· 9.32 mi
10:58/mi
1:43:43
↑ 67↓ 78
20K· 12.43 mi
11:14/mi
2:18:38
↑ 106↓ 860.1%
Half· 13.11 mi
10:29/mi
2:25:47
↑ 19↓ 370.5%
25K· 15.53 mi
11:09/mi
2:52:49
↑ 66↓ 880.2%
30K· 18.64 mi
11:12/mi
3:27:38
↑ 181↓ 1480.2%
20M
11:07/mi
3:42:45
↑ 64↓ 500.2%
21M
12:01/mi
3:54:46
↑ 106↓ 241.6%
35K· 21.75 mi
11:22/mi
4:03:16
↑ 17↓ 861.7%
23M
13:30/mi
4:20:10
↑ 23↓ 630.6%
24M
12:28/mi
4:32:38
↓ 821.3%
40K· 24.85 mi
14:16/mi
4:44:50
↓ 200.3%
25.2M
14:21/mi
4:49:47
↑ 13↓ 160.2%
Finish· 26.22 mi
10:33/mi
5:00:32
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:25:47
Pace11:07 /mi
2nd Half
Distance13.11 mi
Time2:34:45
Pace11:48 /mi
📊Positive Split: 6.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:5335:0611:1835:06
11:18
-
10K
6.21 mi12:29:251:09:3811:1234:32
11:07
-0:11
15K
9.32 mi13:03:301:43:4311:0834:05
10:58
-0:09
20K
12.43 mi13:38:252:18:3811:0934:55
11:14
+0:16
Half
13.11 mi13:45:342:25:4711:077:09
10:29
-0:45
25K
15.53 mi14:12:362:52:4911:0727:02
11:09
+0:40
30K
18.64 mi14:47:253:27:3811:0834:49
11:12
+0:03
20M
20.00 mi15:02:323:42:4511:0815:07
11:07
-0:05
21M
21.00 mi15:14:333:54:4611:1112:01
12:01
+0:54
35K
21.75 mi15:23:034:03:1611:118:30
11:22
-0:39
23M
23.00 mi15:39:574:20:1011:1916:54
13:30
+2:08
24M
24.00 mi15:52:254:32:3811:2212:28
12:28
-1:02
40K
24.85 mi16:04:374:44:5011:2812:12
14:16
+1:48
25.2M
25.20 mi16:09:344:49:4711:304:57
14:21
+0:05
Finish
26.22 mi16:20:195:00:3211:2810:45
10:33
-3:48

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

10:29 /mi

Average Pace

11:28 /mi

Slowest Pace

14:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

17:54

6% of race

Time at Steady Pace

3:44:06

75% of race

Time at Slower Pace

58:32

19% of race

Average Pace: 11:28 /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 mi11:54:5335:0611:1835:06
11:18
#26018
10K
6.21 mi12:29:251:09:3811:1234:32
11:07
#25821
15K
9.32 mi13:03:301:43:4311:0834:05
10:58
#25610
20K
12.43 mi13:38:252:18:3811:0934:55
11:14
#25426
Half
13.11 mi13:45:342:25:4711:077:09
10:29
#25377
25K
15.53 mi14:12:362:52:4911:0727:02
11:09
#25185
30K
18.64 mi14:47:253:27:3811:0834:49
11:12
#24889
20M
20.00 mi15:02:323:42:4511:0815:07
11:07
#24746
21M
21.00 mi15:14:333:54:4611:1112:01
12:01
#24665
35K
21.75 mi15:23:034:03:1611:118:30
11:22
#24637
23M
23.00 mi15:39:574:20:1011:1916:54
13:30
#24732
24M
24.00 mi15:52:254:32:3811:2212:28
12:28
#24760
40K
24.85 mi16:04:374:44:5011:2812:12
14:16
#24851
25.2M
25.20 mi16:09:344:49:4711:304:57
14:21
#24880
Finish
26.22 mi16:20:195:00:3211:2810:45
10:33
#24844
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM70-74Seg. OverallSeg. MalesSeg. M70-74
5K3.11 mi3.11 mi26018149381493825141(Top 94%)14581(Top 96%)14581(Top 6846%)
10K6.21 mi3.10 mi25821+19714865+7314865+7325582(Top 96%)14773(Top 97%)14773(Top 6936%)
15K9.32 mi3.11 mi25610+21114787+7814787+7825141(Top 94%)14581(Top 96%)14581(Top 6846%)
20K12.43 mi3.11 mi25426+18414702+8514702+8524935(Top 94%)14470(Top 95%)14470(Top 6793%)
Half13.11 mi0.68 mi25377+4914680+2214680+2224174(Top 91%)14139(Top 93%)14139(Top 6638%)
25K15.53 mi2.42 mi25185+19214588+9214588+9224199(Top 91%)14119(Top 93%)14119(Top 6629%)
30K18.64 mi3.11 mi24889+29614441+14714441+14723426(Top 88%)13708(Top 90%)13708(Top 6436%)
20M20.00 mi1.36 mi24746+14314370+7114370+7122912(Top 86%)13429(Top 88%)13429(Top 6305%)
21M21.00 mi1.00 mi24665+8114336+3414336+3422781(Top 86%)13331(Top 88%)13331(Top 6259%)
35K21.75 mi0.75 mi24637+2814312+2414312+2423898(Top 90%)13802(Top 91%)13802(Top 6480%)
23M23.00 mi1.25 mi24732-9514345-3314345-3325496(Top 96%)14578(Top 96%)14578(Top 6844%)
24M24.00 mi1.00 mi24760-2814347-214347-225032(Top 94%)14310(Top 94%)14310(Top 6718%)
40K24.85 mi0.85 mi24851-9114377-3014377-3025829(Top 97%)14716(Top 97%)14716(Top 6909%)
25.2M25.20 mi0.35 mi24880-2914390-1314390-1325268(Top 95%)14432(Top 95%)14432(Top 6776%)
Finish26.22 mi1.02 mi24844+3614366+2414366+2423106(Top 87%)13392(Top 88%)13392(Top 6287%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 94%
×21story building
+97ft-345ft

Overall

25141

Males

14581

M70-74

14581

5K→10K

3.1 - 6.2 mi

Top 96%
×5story building
+79ft-138ft

Overall

25582

Males

14773

M70-74

14773

10K→15K

6.2 - 9.3 mi

Top 94%
×3story building
+67ft-78ft

Overall

25141

Males

14581

M70-74

14581

15K→20K

9.3 - 12.4 mi

Top 94%
×5story building
+106ft-86ft

Overall

24935

Males

14470

M70-74

14470

20K→Half

12.4 - 13.1 mi

Top 91%
×2story building
+19ft-37ft

Overall

24174

Males

14139

M70-74

14139

Half→25K

13.1 - 15.5 mi

Top 91%
×4story building
+66ft-88ft

Overall

24199

Males

14119

M70-74

14119

25K→30K

15.5 - 18.6 mi

Top 88%
×9story building
+181ft-148ft

Overall

23426

Males

13708

M70-74

13708

30K→20M

18.6 - 20.0 mi

Top 86%
×5story building
+64ft-50ft

Overall

22912

Males

13429

M70-74

13429

20M→21M

20.0 - 21.0 mi

Top 86%
×8story building
+106ft-24ft

Overall

22781

Males

13331

M70-74

13331

21M→35K

21.0 - 21.8 mi

Top 90%
×7story building
+17ft-86ft

Overall

23898

Males

13802

M70-74

13802

35K→23M

21.8 - 23.0 mi

Top 96%
×5story building
+23ft-63ft

Overall

25496

Males

14578

M70-74

14578

23M→24M

23.0 - 24.0 mi

Top 94%
×6story building
+12ft-82ft

Overall

25032

Males

14310

M70-74

14310

24M→40K

24.0 - 24.9 mi

Top 97%
×1story
+6ft-20ft

Overall

25829

Males

14716

M70-74

14716

40K→25.2M

24.9 - 25.2 mi

Top 95%
×1story
+13ft-16ft

Overall

25268

Males

14432

M70-74

14432

25.2M→Finish

25.2 - 26.2 mi

Top 87%
×2story building
+22ft-21ft

Overall

23106

Males

13392

M70-74

13392

Passing Analysis

Category:
Athletes Passed
1554
Passed By
380
Net Change
+1174
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26018
5K → 10K23740+197#26018#25821
10K → 15K22716+211#25821#25610
15K → 20K19713+184#25610#25426
20K → Half490+49#25426#25377
Half → 25K1975+192#25377#25185
25K → 30K2960+296#25185#24889
30K → 20M1452+143#24889#24746
20M → 21M843+81#24746#24665
21M → 35K379+28#24665#24637
35K → 23M20115-95#24637#24732
23M → 24M1341-28#24732#24760
24M → 40K9100-91#24760#24851
40K → 25.2M130-29#24851#24880
25.2M → Finish426+36#24880#24844
TOTALS1554380+1174
📊

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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Questions or issues regarding timing data?

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing