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BOSTON MARATHON 2023

Laurence Tien

Bib: 7350•M

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M50-54)
#0 / 2052
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:21
Rank: #12719
Start → 5K
24:21 | 7:50/mi
10K· 6.21 mi
48:37
Rank: #12918 (-199)
5K → 10K
24:16 | 7:49/mi
15K· 9.32 mi
1:12:54
Rank: #12883 (+35)
10K → 15K
24:17 | 7:49/mi
20K· 12.43 mi
1:37:20
Rank: #12686 (+197)
15K → 20K
24:26 | 7:52/mi
Half· 13.11 mi
1:42:39
Rank: #12670 (+16)
20K → Half
5:19 | 7:48/mi
25K· 15.53 mi
2:02:16
Rank: #12794 (-124)
Half → 25K
19:37 | 8:05/mi
30K· 18.64 mi
2:28:44
Rank: #13133 (-339)
25K → 30K
26:28 | 8:31/mi
20M
2:41:04
Rank: #13453 (-320)
30K → 20M
12:20 | 9:05/mi
21M
2:50:43
Rank: #13687 (-234)
20M → 21M
9:39 | 9:39/mi
35K· 21.75 mi
2:57:01
Rank: #13713 (-26)
21M → 35K
6:18 | 8:25/mi
23M
3:08:13
Rank: #13832 (-119)
35K → 23M
11:12 | 8:57/mi
24M
3:16:51
Rank: #13896 (-64)
23M → 24M
8:38 | 8:38/mi
40K· 24.85 mi
3:24:19
Rank: #13891 (+5)
24M → 40K
7:28 | 8:44/mi
25.2M
3:27:44
Rank: #13968 (-77)
40K → 25.2M
3:25 | 9:54/mi
Finish· 26.22 mi
3:36:28
Rank: #14049 (-81)
25.2M → Finish
8:44 | 8:34/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:39
Pace7:50 /mi
2nd Half
Distance13.11 mi
Time1:53:49
Pace8:41 /mi
📊Positive Split: 10.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:0724:217:5024:21
7:50
-
10K
6.21 mi11:17:2348:377:4924:16
7:49
-0:01
15K
9.32 mi11:41:401:12:547:4924:17
7:49
0:00
20K
12.43 mi12:06:061:37:207:5024:26
7:52
+0:03
Half
13.11 mi12:11:251:42:397:505:19
7:48
-0:04
25K
15.53 mi12:31:022:02:167:5219:37
8:05
+0:17
30K
18.64 mi12:57:302:28:447:5926:28
8:31
+0:26
20M
20.00 mi13:09:502:41:048:0312:20
9:05
+0:34
21M
21.00 mi13:19:292:50:438:089:39
9:39
+0:34
35K
21.75 mi13:25:472:57:018:086:18
8:25
-1:14
23M
23.00 mi13:36:593:08:138:1111:12
8:57
+0:32
24M
24.00 mi13:45:373:16:518:128:38
8:38
-0:19
40K
24.85 mi13:53:053:24:198:137:28
8:44
+0:06
25.2M
25.20 mi13:56:303:27:448:153:25
9:54
+1:10
Finish
26.22 mi14:05:143:36:288:168:44
8:34
-1:20

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

7:48 /mi

Average Pace

8:16 /mi

Slowest Pace

9:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:02:16

56% of race

Time at Steady Pace

57:36

27% of race

Time at Slower Pace

36:36

17% of race

Average Pace: 8:15 /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 mi10:53:0724:217:5024:21
7:50
#12719
10K
6.21 mi11:17:2348:377:4924:16
7:49
#12918
15K
9.32 mi11:41:401:12:547:4924:17
7:49
#12883
20K
12.43 mi12:06:061:37:207:5024:26
7:52
#12686
Half
13.11 mi12:11:251:42:397:505:19
7:48
#12670
25K
15.53 mi12:31:022:02:167:5219:37
8:05
#12794
30K
18.64 mi12:57:302:28:447:5926:28
8:31
#13133
20M
20.00 mi13:09:502:41:048:0312:20
9:05
#13453
21M
21.00 mi13:19:292:50:438:089:39
9:39
#13687
35K
21.75 mi13:25:472:57:018:086:18
8:25
#13713
23M
23.00 mi13:36:593:08:138:1111:12
8:57
#13832
24M
24.00 mi13:45:373:16:518:128:38
8:38
#13896
40K
24.85 mi13:53:053:24:198:137:28
8:44
#13891
25.2M
25.20 mi13:56:303:27:448:153:25
9:54
#13968
Finish
26.22 mi14:05:143:36:288:168:44
8:34
#14049
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi127199418941812864(Top 48%)9461(Top 62%)9461(Top 461%)
10K6.21 mi3.10 mi12918-1999505-879505-8713209(Top 50%)9636(Top 63%)9636(Top 470%)
15K9.32 mi3.11 mi12883+359477+289477+2812864(Top 48%)9461(Top 62%)9461(Top 461%)
20K12.43 mi3.11 mi12686+1979370+1079370+10712278(Top 46%)9141(Top 60%)9141(Top 445%)
Half13.11 mi0.68 mi12670+169355+159355+1512628(Top 47%)9353(Top 62%)9353(Top 456%)
25K15.53 mi2.42 mi12794-1249386-319386-3113438(Top 50%)9543(Top 63%)9543(Top 465%)
30K18.64 mi3.11 mi13133-3399488-1029488-10214431(Top 54%)9830(Top 65%)9830(Top 479%)
20M20.00 mi1.36 mi13453-3209606-1189606-11816898(Top 63%)10780(Top 71%)10780(Top 525%)
21M21.00 mi1.00 mi13687-2349689-839689-8316615(Top 62%)10615(Top 70%)10615(Top 517%)
35K21.75 mi0.75 mi13713-269681+89681+814816(Top 56%)9796(Top 65%)9796(Top 477%)
23M23.00 mi1.25 mi13832-1199694-139694-1315750(Top 59%)10124(Top 67%)10124(Top 493%)
24M24.00 mi1.00 mi13896-649686+89686+815242(Top 57%)9851(Top 65%)9851(Top 480%)
40K24.85 mi0.85 mi13891+59669+179669+1714679(Top 55%)9529(Top 63%)9529(Top 464%)
25.2M25.20 mi0.35 mi13968-779696-279696-2716947(Top 64%)10524(Top 69%)10524(Top 513%)
Finish26.22 mi1.02 mi14049-819704-89704-815796(Top 59%)10080(Top 66%)10080(Top 491%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21stories
+97ft-345ft

Overall

12864

Males

9461

M50-54

9461

5K→10K

3.1 - 6.2 mi

Top 50%
×5stories
+79ft-138ft

Overall

13209

Males

9636

M50-54

9636

10K→15K

6.2 - 9.3 mi

Top 48%
×3stories
+67ft-78ft

Overall

12864

Males

9461

M50-54

9461

15K→20K

9.3 - 12.4 mi

Top 46%
×5stories
+106ft-86ft

Overall

12278

Males

9141

M50-54

9141

20K→Half

12.4 - 13.1 mi

Top 47%
×2stories
+19ft-37ft

Overall

12628

Males

9353

M50-54

9353

Half→25K

13.1 - 15.5 mi

Top 50%
×4stories
+66ft-88ft

Overall

13438

Males

9543

M50-54

9543

25K→30K

15.5 - 18.6 mi

Top 54%
×9stories
+181ft-148ft

Overall

14431

Males

9830

M50-54

9830

30K→20M

18.6 - 20.0 mi

Top 63%
×5stories
+64ft-50ft

Overall

16898

Males

10780

M50-54

10780

20M→21M

20.0 - 21.0 mi

Top 62%
×8stories
+106ft-24ft

Overall

16615

Males

10615

M50-54

10615

21M→35K

21.0 - 21.8 mi

Top 56%
×7stories
+17ft-86ft

Overall

14816

Males

9796

M50-54

9796

35K→23M

21.8 - 23.0 mi

Top 59%
×5stories
+23ft-63ft

Overall

15750

Males

10124

M50-54

10124

23M→24M

23.0 - 24.0 mi

Top 57%
×6stories
+12ft-82ft

Overall

15242

Males

9851

M50-54

9851

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

14679

Males

9529

M50-54

9529

40K→25.2M

24.9 - 25.2 mi

Top 64%
×1story
+13ft-16ft

Overall

16947

Males

10524

M50-54

10524

25.2M→Finish

25.2 - 26.2 mi

Top 59%
×2stories
+22ft-21ft

Overall

15796

Males

10080

M50-54

10080

Passing Analysis

Category:
Athletes Passed
1319
Passed By
2649
Net Change
-1330
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12719
5K → 10K216415-199#12719#12918
10K → 15K224189+35#12918#12883
15K → 20K301104+197#12883#12686
20K → Half3923+16#12686#12670
Half → 25K105229-124#12670#12794
25K → 30K102441-339#12794#13133
30K → 20M28348-320#13133#13453
20M → 21M39273-234#13453#13687
21M → 35K4167-26#13687#13713
35K → 23M57176-119#13713#13832
23M → 24M49113-64#13832#13896
24M → 40K6661+5#13896#13891
40K → 25.2M1087-77#13891#13968
25.2M → Finish42123-81#13968#14049
TOTALS13192649-1330
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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