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BOSTON MARATHON 2023

Brian Lee

NY

Bib: 25098 M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M40-44)
#0 / 2241
Race Day Weather
49°/39°F
light intensity drizzle

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
13:02/mi
40:31
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
12:33/mi
1:19:31
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
13:06/mi
2:00:14
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
13:17/mi
2:41:31
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
12:10/mi
2:49:49
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
13:25/mi
3:22:21
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
14:25/mi
4:07:07
↑ 181↓ 1480.2%
138 ft elev
20M
14:00/mi
4:26:09
↑ 64↓ 500.2%
148 ft elev
21M
15:04/mi
4:41:13
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
13:27/mi
4:51:17
↑ 17↓ 861.7%
156 ft elev
23M
13:20/mi
5:07:59
↑ 23↓ 630.6%
116 ft elev
24M
12:25/mi
5:20:24
↓ 821.3%
34 ft elev
40K· 24.85 mi
12:50/mi
5:31:22
↓ 200.3%
20 ft elev
25.2M
13:20/mi
5:35:58
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
11:33/mi
5:47:44
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
2:49:4912:57 /mi⚡ faster
2nd Half
2:57:5513:34 /mi+4.8%
Positive split — 4.8% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
40:3113:023.11 mi40:31
13:02
-
10K
1:19:3112:483.10 mi39:00
12:33
-0:29
15K
2:00:1412:543.11 mi40:43
13:06
+0:33
20K
2:41:3113:003.11 mi41:17
13:17
+0:11
Half(13.11 mi)
2:49:4912:570.68 mi8:18
12:10
-1:07
25K
3:22:2113:022.42 mi32:32
13:25
+1:15
30K
4:07:0713:153.11 mi44:46
14:25
+1:00
20M
4:26:0913:181.36 mi19:02
14:00
-0:25
21M
4:41:1313:231.00 mi15:04
15:04
+1:04
35K
4:51:1713:240.75 mi10:04
13:27
-1:37
23M
5:07:5913:231.25 mi16:42
13:20
-0:07
24M
5:20:2413:211.00 mi12:25
12:25
-0:55
40K
5:31:2213:200.85 mi10:58
12:50
+0:25
25.2M
5:35:5813:200.35 mi4:36
13:20
+0:30
Finish(26.22 mi)
5:47:4413:161.02 mi11:46
11:33
-1:47
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

11:33 /mi

Average Pace

13:16 /mi

Slowest Pace

15:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

1:22:27

24% of race

Time at Steady Pace

3:06:25

54% of race

Time at Slower Pace

1:18:52

23% of race

Average Pace: 13:16 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi265931515815158265071512115121
10K3.10 mi26563+3015140+1815140+18264851510915109
15K3.11 mi26560+315137+315137+3265071512115121
20K3.11 mi26545+1515131+615131+6263521506015060
Half(13.11 mi)0.68 mi26538+715126+515126+5259751490714907
25K2.42 mi26507+3115116+1015116+10260891494414944
30K3.11 mi26494+1315117-115117-1262041497814978
20M1.36 mi26478+1615113+415113+4258251477314773
21M1.00 mi26466+1215110+315110+3257591475114751
35K0.75 mi26459+715107+315107+3258601477114771
23M1.25 mi26420+3915090+1715090+17253941452814528
24M1.00 mi26383+3715075+1515075+15249701428814288
40K0.85 mi26357+2615061+1415061+14247941420814208
25.2M0.35 mi26339+1815050+1115050+11243661399013990
Finish(26.22 mi)1.02 mi26303+3615035+1515035+15247311418814188

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

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

Overall

26507

Males

15121

M40-44

15121

5K→10K

3.1 - 6.2 mi

Top 99%
×5story building
+79ft-138ft

Overall

26485

Males

15109

M40-44

15109

10K→15K

6.2 - 9.3 mi

Top 100%
×3story building
+67ft-78ft

Overall

26507

Males

15121

M40-44

15121

15K→20K

9.3 - 12.4 mi

Top 99%
×5story building
+106ft-86ft

Overall

26352

Males

15060

M40-44

15060

20K→Half

12.4 - 13.1 mi

Top 98%
×2story building
+19ft-37ft

Overall

25975

Males

14907

M40-44

14907

Half→25K

13.1 - 15.5 mi

Top 98%
×4story building
+66ft-88ft

Overall

26089

Males

14944

M40-44

14944

25K→30K

15.5 - 18.6 mi

Top 98%
×9story building
+181ft-148ft

Overall

26204

Males

14978

M40-44

14978

30K→20M

18.6 - 20.0 mi

Top 97%
×5story building
+64ft-50ft

Overall

25825

Males

14773

M40-44

14773

20M→21M

20.0 - 21.0 mi

Top 97%
×8story building
+106ft-24ft

Overall

25759

Males

14751

M40-44

14751

21M→35K

21.0 - 21.8 mi

Top 97%
×7story building
+17ft-86ft

Overall

25860

Males

14771

M40-44

14771

35K→23M

21.8 - 23.0 mi

Top 95%
×5story building
+23ft-63ft

Overall

25394

Males

14528

M40-44

14528

23M→24M

23.0 - 24.0 mi

Top 94%
×6story building
+12ft-82ft

Overall

24970

Males

14288

M40-44

14288

24M→40K

24.0 - 24.9 mi

Top 93%
×1story
+6ft-20ft

Overall

24794

Males

14208

M40-44

14208

40K→25.2M

24.9 - 25.2 mi

Top 92%
×1story
+13ft-16ft

Overall

24366

Males

13990

M40-44

13990

25.2M→Finish

25.2 - 26.2 mi

Top 93%
×2story building
+22ft-21ft

Overall

24731

Males

14188

M40-44

14188

Passing Analysis

Category:
Passed
335
Passed By
45
Net Change
+290
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26593
5K → 10K333+30#26593#26563
10K → 15K118+3#26563#26560
15K → 20K194+15#26560#26545
20K → Half70+7#26545#26538
Half → 25K321+31#26538#26507
25K → 30K2714+13#26507#26494
30K → 20M215+16#26494#26478
20M → 21M153+12#26478#26466
21M → 35K103+7#26466#26459
35K → 23M401+39#26459#26420
23M → 24M370+37#26420#26383
24M → 40K271+26#26383#26357
40K → 25.2M180+18#26357#26339
25.2M → Finish382+36#26339#26303
TOTALS33545+290

Passing Charts

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