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BOSTON MARATHON 2023

Russell Lew

Bib: 20952•M

BC

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M60-64)
#0 / 1110
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:22
Rank: #17470
Start → 5K
26:22 | 8:29/mi
10K· 6.21 mi
54:14
Rank: #19290 (-1820)
5K → 10K
27:52 | 8:58/mi
15K· 9.32 mi
1:23:25
Rank: #20339 (-1049)
10K → 15K
29:11 | 9:24/mi
20K· 12.43 mi
1:52:55
Rank: #20709 (-370)
15K → 20K
29:30 | 9:30/mi
Half· 13.11 mi
1:58:52
Rank: #20639 (+70)
20K → Half
5:57 | 8:43/mi
25K· 15.53 mi
2:20:36
Rank: #20360 (+279)
Half → 25K
21:44 | 8:58/mi
30K· 18.64 mi
2:49:27
Rank: #20006 (+354)
25K → 30K
28:51 | 9:17/mi
20M
3:02:05
Rank: #19834 (+172)
30K → 20M
12:38 | 9:18/mi
21M
3:11:39
Rank: #19621 (+213)
20M → 21M
9:34 | 9:34/mi
35K· 21.75 mi
3:17:53
Rank: #19459 (+162)
21M → 35K
6:14 | 8:20/mi
23M
3:30:15
Rank: #19485 (-26)
35K → 23M
12:22 | 9:53/mi
24M
3:39:57
Rank: #19528 (-43)
23M → 24M
9:42 | 9:42/mi
40K· 24.85 mi
3:48:09
Rank: #19498 (+30)
24M → 40K
8:12 | 9:35/mi
25.2M
3:51:30
Rank: #19460 (+38)
40K → 25.2M
3:21 | 9:43/mi
Finish· 26.22 mi
4:00:15
Rank: #19355 (+105)
25.2M → Finish
8:45 | 8:35/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:58:52
Pace9:04 /mi
2nd Half
Distance13.11 mi
Time2:01:23
Pace9:16 /mi
📊Positive Split: 2.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:0326:228:2926:22
8:29
-
10K
6.21 mi12:18:5554:148:4427:52
8:58
+0:29
15K
9.32 mi12:48:061:23:258:5729:11
9:24
+0:26
20K
12.43 mi13:17:361:52:559:0529:30
9:30
+0:06
Half
13.11 mi13:23:331:58:529:045:57
8:43
-0:47
25K
15.53 mi13:45:172:20:369:0321:44
8:58
+0:15
30K
18.64 mi14:14:082:49:279:0528:51
9:17
+0:19
20M
20.00 mi14:26:463:02:059:0612:38
9:18
+0:01
21M
21.00 mi14:36:203:11:399:089:34
9:34
+0:16
35K
21.75 mi14:42:343:17:539:066:14
8:20
-1:14
23M
23.00 mi14:54:563:30:159:0812:22
9:53
+1:33
24M
24.00 mi15:04:383:39:579:109:42
9:42
-0:11
40K
24.85 mi15:12:503:48:099:118:12
9:35
-0:07
25.2M
25.20 mi15:16:113:51:309:113:21
9:43
+0:08
Finish
26.22 mi15:24:564:00:159:108:45
8:35
-1:08

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

8:20 /mi

Average Pace

9:10 /mi

Slowest Pace

9:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:36:54

40% of race

Time at Steady Pace

2:10:59

55% of race

Time at Slower Pace

12:22

5% of race

Average Pace: 9:10 /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 mi11:51:0326:228:2926:22
8:29
#17470
10K
6.21 mi12:18:5554:148:4427:52
8:58
#19290
15K
9.32 mi12:48:061:23:258:5729:11
9:24
#20339
20K
12.43 mi13:17:361:52:559:0529:30
9:30
#20709
Half
13.11 mi13:23:331:58:529:045:57
8:43
#20639
25K
15.53 mi13:45:172:20:369:0321:44
8:58
#20360
30K
18.64 mi14:14:082:49:279:0528:51
9:17
#20006
20M
20.00 mi14:26:463:02:059:0612:38
9:18
#19834
21M
21.00 mi14:36:203:11:399:089:34
9:34
#19621
35K
21.75 mi14:42:343:17:539:066:14
8:20
#19459
23M
23.00 mi14:54:563:30:159:0812:22
9:53
#19485
24M
24.00 mi15:04:383:39:579:109:42
9:42
#19528
40K
24.85 mi15:12:503:48:099:118:12
9:35
#19498
25.2M
25.20 mi15:16:113:51:309:113:21
9:43
#19460
Finish
26.22 mi15:24:564:00:159:108:45
8:35
#19355
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi17470112191121921932(Top 82%)13158(Top 87%)13158(Top 1185%)
10K6.21 mi3.10 mi19290-182011939-72011939-72020741(Top 78%)12604(Top 83%)12604(Top 1135%)
15K9.32 mi3.11 mi20339-104912392-45312392-45321932(Top 82%)13158(Top 87%)13158(Top 1185%)
20K12.43 mi3.11 mi20709-37012578-18612578-18621534(Top 81%)12970(Top 85%)12970(Top 1168%)
Half13.11 mi0.68 mi20639+7012552+2612552+2619035(Top 72%)11911(Top 78%)11911(Top 1073%)
25K15.53 mi2.42 mi20360+27912431+12112431+12118778(Top 71%)11752(Top 77%)11752(Top 1059%)
30K18.64 mi3.11 mi20006+35412252+17912252+17918550(Top 70%)11582(Top 76%)11582(Top 1043%)
20M20.00 mi1.36 mi19834+17212173+7912173+7918008(Top 68%)11243(Top 74%)11243(Top 1013%)
21M21.00 mi1.00 mi19621+21312076+9712076+9716269(Top 61%)10477(Top 69%)10477(Top 944%)
35K21.75 mi0.75 mi19459+16211999+7711999+7714285(Top 54%)9563(Top 63%)9563(Top 862%)
23M23.00 mi1.25 mi19485-2612005-612005-619629(Top 74%)11854(Top 78%)11854(Top 1068%)
24M24.00 mi1.00 mi19528-4312008-312008-319883(Top 75%)11953(Top 79%)11953(Top 1077%)
40K24.85 mi0.85 mi19498+3011987+2111987+2118637(Top 70%)11327(Top 75%)11327(Top 1020%)
25.2M25.20 mi0.35 mi19460+3811968+1911968+1916154(Top 61%)10198(Top 67%)10198(Top 919%)
Finish26.22 mi1.02 mi19355+10511926+4211926+4215906(Top 60%)10142(Top 67%)10142(Top 914%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21stories
+97ft-345ft

Overall

21932

Males

13158

M60-64

13158

5K→10K

3.1 - 6.2 mi

Top 78%
×5stories
+79ft-138ft

Overall

20741

Males

12604

M60-64

12604

10K→15K

6.2 - 9.3 mi

Top 82%
×3stories
+67ft-78ft

Overall

21932

Males

13158

M60-64

13158

15K→20K

9.3 - 12.4 mi

Top 81%
×5stories
+106ft-86ft

Overall

21534

Males

12970

M60-64

12970

20K→Half

12.4 - 13.1 mi

Top 72%
×2stories
+19ft-37ft

Overall

19035

Males

11911

M60-64

11911

Half→25K

13.1 - 15.5 mi

Top 71%
×4stories
+66ft-88ft

Overall

18778

Males

11752

M60-64

11752

25K→30K

15.5 - 18.6 mi

Top 70%
×9stories
+181ft-148ft

Overall

18550

Males

11582

M60-64

11582

30K→20M

18.6 - 20.0 mi

Top 68%
×5stories
+64ft-50ft

Overall

18008

Males

11243

M60-64

11243

20M→21M

20.0 - 21.0 mi

Top 61%
×8stories
+106ft-24ft

Overall

16269

Males

10477

M60-64

10477

21M→35K

21.0 - 21.8 mi

Top 54%
×7stories
+17ft-86ft

Overall

14285

Males

9563

M60-64

9563

35K→23M

21.8 - 23.0 mi

Top 74%
×5stories
+23ft-63ft

Overall

19629

Males

11854

M60-64

11854

23M→24M

23.0 - 24.0 mi

Top 75%
×6stories
+12ft-82ft

Overall

19883

Males

11953

M60-64

11953

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

18637

Males

11327

M60-64

11327

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

16154

Males

10198

M60-64

10198

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2stories
+22ft-21ft

Overall

15906

Males

10142

M60-64

10142

Passing Analysis

Category:
Athletes Passed
1748
Passed By
3633
Net Change
-1885
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17470
5K → 10K221842-1820#17470#19290
10K → 15K171066-1049#19290#20339
15K → 20K71441-370#20339#20709
20K → Half755+70#20709#20639
Half → 25K29011+279#20639#20360
25K → 30K37117+354#20360#20006
30K → 20M18614+172#20006#19834
20M → 21M22310+213#19834#19621
21M → 35K1642+162#19621#19459
35K → 23M6894-26#19459#19485
23M → 24M4184-43#19485#19528
24M → 40K6535+30#19528#19498
40K → 25.2M402+38#19498#19460
25.2M → Finish11510+105#19460#19355
TOTALS17483633-1885
📊

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