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BOSTON MARATHON 2023

Drew Lefkof

Bib: 4738•M

DC

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 8%
Gender (Male)
#0 / 15176
Top 14%
Division (M18-39)
#0 / 5285
Top 31%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:19
Rank: #2488
Start → 5K
20:19 | 6:32/mi
10K· 6.21 mi
40:24
Rank: #2503 (-15)
5K → 10K
20:05 | 6:28/mi
15K· 9.32 mi
1:00:27
Rank: #2467 (+36)
10K → 15K
20:03 | 6:27/mi
20K· 12.43 mi
1:20:39
Rank: #2391 (+76)
15K → 20K
20:12 | 6:30/mi
Half· 13.11 mi
1:25:02
Rank: #2391
20K → Half
4:23 | 6:25/mi
25K· 15.53 mi
1:40:46
Rank: #2349 (+42)
Half → 25K
15:44 | 6:29/mi
30K· 18.64 mi
2:01:30
Rank: #2313 (+36)
25K → 30K
20:44 | 6:40/mi
20M
2:10:38
Rank: #2302 (+11)
30K → 20M
9:08 | 6:43/mi
21M
2:17:57
Rank: #2336 (-34)
20M → 21M
7:19 | 7:19/mi
35K· 21.75 mi
2:22:47
Rank: #2317 (+19)
21M → 35K
4:50 | 6:28/mi
23M
2:31:07
Rank: #2264 (+53)
35K → 23M
8:20 | 6:39/mi
24M
2:37:41
Rank: #2262 (+2)
23M → 24M
6:34 | 6:34/mi
40K· 24.85 mi
2:43:19
Rank: #2223 (+39)
24M → 40K
5:38 | 6:35/mi
25.2M
2:45:43
Rank: #2203 (+20)
40K → 25.2M
2:24 | 6:58/mi
Finish· 26.22 mi
2:52:20
Rank: #2166 (+37)
25.2M → Finish
6:37 | 6:30/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:25:02
Pace6:29 /mi
2nd Half
Distance13.11 mi
Time1:27:18
Pace6:40 /mi
📊Positive Split: 2.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:4020:196:3220:19
6:32
-
10K
6.21 mi10:42:4540:246:3020:05
6:28
-0:04
15K
9.32 mi11:02:481:00:276:2920:03
6:27
-0:01
20K
12.43 mi11:23:001:20:396:2920:12
6:30
+0:03
Half
13.11 mi11:27:231:25:026:294:23
6:25
-0:05
25K
15.53 mi11:43:071:40:466:2915:44
6:29
+0:04
30K
18.64 mi12:03:512:01:306:3120:44
6:40
+0:11
20M
20.00 mi12:12:592:10:386:329:08
6:43
+0:03
21M
21.00 mi12:20:182:17:576:347:19
7:19
+0:36
35K
21.75 mi12:25:082:22:476:344:50
6:28
-0:51
23M
23.00 mi12:33:282:31:076:348:20
6:39
+0:11
24M
24.00 mi12:40:022:37:416:346:34
6:34
-0:05
40K
24.85 mi12:45:402:43:196:345:38
6:35
+0:01
25.2M
25.20 mi12:48:042:45:436:352:24
6:58
+0:23
Finish
26.22 mi12:54:412:52:206:356:37
6:30
-0:28

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

6:25 /mi

Average Pace

6:35 /mi

Slowest Pace

7:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:45:01

96% of race

Time at Steady Pace

7:19

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:34 /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 mi10:22:4020:196:3220:19
6:32
#2488
10K
6.21 mi10:42:4540:246:3020:05
6:28
#2503
15K
9.32 mi11:02:481:00:276:2920:03
6:27
#2467
20K
12.43 mi11:23:001:20:396:2920:12
6:30
#2391
Half
13.11 mi11:27:231:25:026:294:23
6:25
#2391
25K
15.53 mi11:43:071:40:466:2915:44
6:29
#2349
30K
18.64 mi12:03:512:01:306:3120:44
6:40
#2313
20M
20.00 mi12:12:592:10:386:329:08
6:43
#2302
21M
21.00 mi12:20:182:17:576:347:19
7:19
#2336
35K
21.75 mi12:25:082:22:476:344:50
6:28
#2317
23M
23.00 mi12:33:282:31:076:348:20
6:39
#2264
24M
24.00 mi12:40:022:37:416:346:34
6:34
#2262
40K
24.85 mi12:45:402:43:196:345:38
6:35
#2223
25.2M
25.20 mi12:48:042:45:436:352:24
6:58
#2203
Finish
26.22 mi12:54:412:52:206:356:37
6:30
#2166
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2488237423742375(Top 9%)2279(Top 15%)2279(Top 43%)
10K6.21 mi3.10 mi2503-152386-122386-122581(Top 10%)2467(Top 16%)2467(Top 47%)
15K9.32 mi3.11 mi2467+362357+292357+292375(Top 9%)2279(Top 15%)2279(Top 43%)
20K12.43 mi3.11 mi2391+762290+672290+672289(Top 9%)2194(Top 14%)2194(Top 42%)
Half13.11 mi0.68 mi23912291-12291-12340(Top 9%)2245(Top 15%)2245(Top 42%)
25K15.53 mi2.42 mi2349+422253+382253+382117(Top 8%)2030(Top 13%)2030(Top 38%)
30K18.64 mi3.11 mi2313+362219+342219+342279(Top 9%)2173(Top 14%)2173(Top 41%)
20M20.00 mi1.36 mi2302+112209+102209+102366(Top 9%)2242(Top 15%)2242(Top 42%)
21M21.00 mi1.00 mi2336-342238-292238-293652(Top 14%)3383(Top 22%)3383(Top 64%)
35K21.75 mi0.75 mi2317+192220+182220+182220(Top 8%)2107(Top 14%)2107(Top 40%)
23M23.00 mi1.25 mi2264+532168+522168+521985(Top 7%)1880(Top 12%)1880(Top 36%)
24M24.00 mi1.00 mi2262+22167+12167+12377(Top 9%)2220(Top 15%)2220(Top 42%)
40K24.85 mi0.85 mi2223+392134+332134+331874(Top 7%)1765(Top 12%)1765(Top 33%)
25.2M25.20 mi0.35 mi2203+202114+202114+201629(Top 6%)1535(Top 10%)1535(Top 29%)
Finish26.22 mi1.02 mi2166+372077+372077+372428(Top 9%)2236(Top 15%)2236(Top 42%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 9%
×21stories
+97ft-345ft

Overall

2375

Males

2279

M18-39

2279

5K→10K

3.1 - 6.2 mi

Top 10%
×5stories
+79ft-138ft

Overall

2581

Males

2467

M18-39

2467

10K→15K

6.2 - 9.3 mi

Top 9%
×3stories
+67ft-78ft

Overall

2375

Males

2279

M18-39

2279

15K→20K

9.3 - 12.4 mi

Top 9%
×5stories
+106ft-86ft

Overall

2289

Males

2194

M18-39

2194

20K→Half

12.4 - 13.1 mi

Top 9%
×2stories
+19ft-37ft

Overall

2340

Males

2245

M18-39

2245

Half→25K

13.1 - 15.5 mi

Top 8%
×4stories
+66ft-88ft

Overall

2117

Males

2030

M18-39

2030

25K→30K

15.5 - 18.6 mi

Top 9%
×9stories
+181ft-148ft

Overall

2279

Males

2173

M18-39

2173

30K→20M

18.6 - 20.0 mi

Top 9%
×5stories
+64ft-50ft

Overall

2366

Males

2242

M18-39

2242

20M→21M

20.0 - 21.0 mi

Top 14%
×8stories
+106ft-24ft

Overall

3652

Males

3383

M18-39

3383

21M→35K

21.0 - 21.8 mi

Top 8%
×7stories
+17ft-86ft

Overall

2220

Males

2107

M18-39

2107

35K→23M

21.8 - 23.0 mi

Top 7%
×5stories
+23ft-63ft

Overall

1985

Males

1880

M18-39

1880

23M→24M

23.0 - 24.0 mi

Top 9%
×6stories
+12ft-82ft

Overall

2377

Males

2220

M18-39

2220

24M→40K

24.0 - 24.9 mi

Top 7%
×1story
+6ft-20ft

Overall

1874

Males

1765

M18-39

1765

40K→25.2M

24.9 - 25.2 mi

Top 6%
×1story
+13ft-16ft

Overall

1629

Males

1535

M18-39

1535

25.2M→Finish

25.2 - 26.2 mi

Top 9%
×2stories
+22ft-21ft

Overall

2428

Males

2236

M18-39

2236

Passing Analysis

Category:
Athletes Passed
785
Passed By
463
Net Change
+322
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2488
5K → 10K130145-15#2488#2503
10K → 15K8852+36#2503#2467
15K → 20K10125+76#2467#2391
20K → Half15150#2391#2391
Half → 25K6523+42#2391#2349
25K → 30K8549+36#2349#2313
30K → 20M4029+11#2313#2302
20M → 21M1953-34#2302#2336
21M → 35K3112+19#2336#2317
35K → 23M596+53#2317#2264
23M → 24M3432+2#2264#2262
24M → 40K478+39#2262#2223
40K → 25.2M222+20#2223#2203
25.2M → Finish4912+37#2203#2166
TOTALS785463+322
📊

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