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BOSTON MARATHON 2023

Bernie Tan

Bib: 12845•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:49
Rank: #11152
Start → 5K
23:49 | 7:40/mi
10K· 6.21 mi
47:46
Rank: #11687 (-535)
5K → 10K
23:57 | 7:43/mi
15K· 9.32 mi
1:13:00
Rank: #12978 (-1291)
10K → 15K
25:14 | 8:07/mi
20K· 12.43 mi
1:42:08
Rank: #15699 (-2721)
15K → 20K
29:08 | 9:23/mi
Half· 13.11 mi
1:48:34
Rank: #16139 (-440)
20K → Half
6:26 | 9:26/mi
25K· 15.53 mi
2:08:28
Rank: #15821 (+318)
Half → 25K
19:54 | 8:12/mi
30K· 18.64 mi
2:35:40
Rank: #15812 (+9)
25K → 30K
27:12 | 8:45/mi
20M
2:49:03
Rank: #16236 (-424)
30K → 20M
13:23 | 9:51/mi
21M
2:59:19
Rank: #16419 (-183)
20M → 21M
10:16 | 10:16/mi
35K· 21.75 mi
3:06:16
Rank: #16546 (-127)
21M → 35K
6:57 | 9:17/mi
23M
3:19:14
Rank: #16949 (-403)
35K → 23M
12:58 | 10:21/mi
24M
3:28:46
Rank: #17081 (-132)
23M → 24M
9:32 | 9:32/mi
40K· 24.85 mi
3:37:47
Rank: #17369 (-288)
24M → 40K
9:01 | 10:33/mi
25.2M
3:41:14
Rank: #17381 (-12)
40K → 25.2M
3:27 | 10:00/mi
Finish· 26.22 mi
3:50:59
Rank: #17561 (-180)
25.2M → Finish
9:45 | 9:34/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:34
Pace8:17 /mi
2nd Half
Distance13.11 mi
Time2:02:25
Pace9:20 /mi
📊Positive Split: 12.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:2923:497:4023:49
7:40
-
10K
6.21 mi11:15:2647:467:4123:57
7:43
+0:03
15K
9.32 mi11:40:401:13:007:5025:14
8:07
+0:24
20K
12.43 mi12:09:481:42:088:1329:08
9:23
+1:16
Half
13.11 mi12:16:141:48:348:176:26
9:26
+0:03
25K
15.53 mi12:36:082:08:288:1619:54
8:12
-1:14
30K
18.64 mi13:03:202:35:408:2127:12
8:45
+0:33
20M
20.00 mi13:16:432:49:038:2713:23
9:51
+1:06
21M
21.00 mi13:26:592:59:198:3210:16
10:16
+0:25
35K
21.75 mi13:33:563:06:168:346:57
9:17
-0:59
23M
23.00 mi13:46:543:19:148:4012:58
10:21
+1:04
24M
24.00 mi13:56:263:28:468:429:32
9:32
-0:49
40K
24.85 mi14:05:273:37:478:469:01
10:33
+1:01
25.2M
25.20 mi14:08:543:41:148:473:27
10:00
-0:33
Finish
26.22 mi14:18:393:50:598:499:45
9:34
-0:26

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

7:40 /mi

Average Pace

8:49 /mi

Slowest Pace

10:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:00:06

52% of race

Time at Steady Pace

1:15:11

33% of race

Time at Slower Pace

35:42

15% of race

Average Pace: 8:49 /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 mi10:51:2923:497:4023:49
7:40
#11152
10K
6.21 mi11:15:2647:467:4123:57
7:43
#11687
15K
9.32 mi11:40:401:13:007:5025:14
8:07
#12978
20K
12.43 mi12:09:481:42:088:1329:08
9:23
#15699
Half
13.11 mi12:16:141:48:348:176:26
9:26
#16139
25K
15.53 mi12:36:082:08:288:1619:54
8:12
#15821
30K
18.64 mi13:03:202:35:408:2127:12
8:45
#15812
20M
20.00 mi13:16:432:49:038:2713:23
9:51
#16236
21M
21.00 mi13:26:592:59:198:3210:16
10:16
#16419
35K
21.75 mi13:33:563:06:168:346:57
9:17
#16546
23M
23.00 mi13:46:543:19:148:4012:58
10:21
#16949
24M
24.00 mi13:56:263:28:468:429:32
9:32
#17081
40K
24.85 mi14:05:273:37:478:469:01
10:33
#17369
25.2M
25.20 mi14:08:543:41:148:473:27
10:00
#17381
Finish
26.22 mi14:18:393:50:598:499:45
9:34
#17561
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi111528738873815304(Top 57%)10436(Top 69%)10436(Top 734%)
10K6.21 mi3.10 mi11687-5358973-2358973-23512333(Top 46%)9266(Top 61%)9266(Top 652%)
15K9.32 mi3.11 mi12978-12919517-5449517-54415304(Top 57%)10436(Top 69%)10436(Top 734%)
20K12.43 mi3.11 mi15699-272110565-104810565-104821175(Top 80%)12824(Top 85%)12824(Top 902%)
Half13.11 mi0.68 mi16139-44010722-15710722-15721871(Top 82%)13123(Top 86%)13123(Top 923%)
25K15.53 mi2.42 mi15821+31810576+14610576+14614286(Top 54%)9891(Top 65%)9891(Top 696%)
30K18.64 mi3.11 mi15812+910534+4210534+4215803(Top 59%)10399(Top 69%)10399(Top 731%)
20M20.00 mi1.36 mi16236-42410676-14210676-14219995(Top 75%)12123(Top 80%)12123(Top 853%)
21M21.00 mi1.00 mi16419-18310739-6310739-6318920(Top 71%)11605(Top 76%)11605(Top 816%)
35K21.75 mi0.75 mi16546-12710784-4510784-4519084(Top 72%)11623(Top 77%)11623(Top 817%)
23M23.00 mi1.25 mi16949-40310936-15210936-15220945(Top 79%)12427(Top 82%)12427(Top 874%)
24M24.00 mi1.00 mi17081-13210969-3310969-3319309(Top 73%)11664(Top 77%)11664(Top 820%)
40K24.85 mi0.85 mi17369-28811081-11211081-11221301(Top 80%)12500(Top 82%)12500(Top 879%)
25.2M25.20 mi0.35 mi17381-1211077+411077+417359(Top 65%)10712(Top 71%)10712(Top 753%)
Finish26.22 mi1.02 mi17561-18011146-6911146-6920335(Top 76%)12109(Top 80%)12109(Top 852%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21stories
+97ft-345ft

Overall

15304

Males

10436

M55-59

10436

5K→10K

3.1 - 6.2 mi

Top 46%
×5stories
+79ft-138ft

Overall

12333

Males

9266

M55-59

9266

10K→15K

6.2 - 9.3 mi

Top 57%
×3stories
+67ft-78ft

Overall

15304

Males

10436

M55-59

10436

15K→20K

9.3 - 12.4 mi

Top 80%
×5stories
+106ft-86ft

Overall

21175

Males

12824

M55-59

12824

20K→Half

12.4 - 13.1 mi

Top 82%
×2stories
+19ft-37ft

Overall

21871

Males

13123

M55-59

13123

Half→25K

13.1 - 15.5 mi

Top 54%
×4stories
+66ft-88ft

Overall

14286

Males

9891

M55-59

9891

25K→30K

15.5 - 18.6 mi

Top 59%
×9stories
+181ft-148ft

Overall

15803

Males

10399

M55-59

10399

30K→20M

18.6 - 20.0 mi

Top 75%
×5stories
+64ft-50ft

Overall

19995

Males

12123

M55-59

12123

20M→21M

20.0 - 21.0 mi

Top 71%
×8stories
+106ft-24ft

Overall

18920

Males

11605

M55-59

11605

21M→35K

21.0 - 21.8 mi

Top 72%
×7stories
+17ft-86ft

Overall

19084

Males

11623

M55-59

11623

35K→23M

21.8 - 23.0 mi

Top 79%
×5stories
+23ft-63ft

Overall

20945

Males

12427

M55-59

12427

23M→24M

23.0 - 24.0 mi

Top 73%
×6stories
+12ft-82ft

Overall

19309

Males

11664

M55-59

11664

24M→40K

24.0 - 24.9 mi

Top 80%
×1story
+6ft-20ft

Overall

21301

Males

12500

M55-59

12500

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

17359

Males

10712

M55-59

10712

25.2M→Finish

25.2 - 26.2 mi

Top 76%
×2stories
+22ft-21ft

Overall

20335

Males

12109

M55-59

12109

Passing Analysis

Category:
Athletes Passed
855
Passed By
7264
Net Change
-6409
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11152
5K → 10K120655-535#11152#11687
10K → 15K141305-1291#11687#12978
15K → 20K82729-2721#12978#15699
20K → Half2442-440#15699#16139
Half → 25K33517+318#16139#15821
25K → 30K180171+9#15821#15812
30K → 20M20444-424#15812#16236
20M → 21M37220-183#16236#16419
21M → 35K21148-127#16419#16546
35K → 23M20423-403#16546#16949
23M → 24M30162-132#16949#17081
24M → 40K15303-288#17081#17369
40K → 25.2M3345-12#17369#17381
25.2M → Finish20200-180#17381#17561
TOTALS8557264-6409
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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