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BOSTON MARATHON 2023

Chris Lemke

Bib: 13410•M

MB

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

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
9:41/mi
30:06
↑ 97↓ 3451.5%
10K· 6.21 mi
9:47/mi
1:00:31
↑ 79↓ 1380.4%
15K· 9.32 mi
10:13/mi
1:32:16
↑ 67↓ 78
20K· 12.43 mi
11:38/mi
2:08:24
↑ 106↓ 860.1%
Half· 13.11 mi
12:06/mi
2:16:39
↑ 19↓ 370.5%
25K· 15.53 mi
13:21/mi
2:49:01
↑ 66↓ 880.2%
30K· 18.64 mi
14:48/mi
3:35:01
↑ 181↓ 1480.2%
20M
14:54/mi
3:55:16
↑ 64↓ 500.2%
21M
17:06/mi
4:12:22
↑ 106↓ 241.6%
35K· 21.75 mi
16:00/mi
4:24:20
↑ 17↓ 861.7%
23M
16:25/mi
4:44:53
↑ 23↓ 630.6%
24M
16:04/mi
5:00:57
↓ 821.3%
40K· 24.85 mi
16:06/mi
5:14:43
↓ 200.3%
25.2M
17:21/mi
5:20:42
↑ 13↓ 160.2%
Finish· 26.22 mi
13:12/mi
5:34:09
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:16:39
Pace10:25 /mi
2nd Half
Distance13.11 mi
Time3:17:30
Pace15:04 /mi
📊Positive Split: 44.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:58:1730:069:4130:06
9:41
-
10K
6.21 mi11:28:421:00:319:4430:25
9:47
+0:06
15K
9.32 mi12:00:271:32:169:5431:45
10:13
+0:26
20K
12.43 mi12:36:352:08:2410:2036:08
11:38
+1:25
Half
13.11 mi12:44:502:16:3910:258:15
12:06
+0:28
25K
15.53 mi13:17:122:49:0110:5332:22
13:21
+1:15
30K
18.64 mi14:03:123:35:0111:3246:00
14:48
+1:27
20M
20.00 mi14:23:273:55:1611:4620:15
14:54
+0:06
21M
21.00 mi14:40:334:12:2212:0117:06
17:06
+2:12
35K
21.75 mi14:52:314:24:2012:0911:58
16:00
-1:06
23M
23.00 mi15:13:044:44:5312:2320:33
16:25
+0:25
24M
24.00 mi15:29:085:00:5712:3216:04
16:04
-0:21
40K
24.85 mi15:42:545:14:4312:4013:46
16:06
+0:02
25.2M
25.20 mi15:48:535:20:4212:445:59
17:21
+1:15
Finish
26.22 mi16:02:205:34:0912:4513:27
13:12
-4:09

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

9:41 /mi

Average Pace

12:45 /mi

Slowest Pace

17:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:02:28

55% of race

Time at Steady Pace

1:48:03

32% of race

Time at Slower Pace

43:38

13% of race

Average Pace: 12:45 /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 mi10:58:1730:069:4130:06
9:41
#22624
10K
6.21 mi11:28:421:00:319:4430:25
9:47
#23004
15K
9.32 mi12:00:271:32:169:5431:45
10:13
#23369
20K
12.43 mi12:36:352:08:2410:2036:08
11:38
#24083
Half
13.11 mi12:44:502:16:3910:258:15
12:06
#24259
25K
15.53 mi13:17:122:49:0110:5332:22
13:21
#24819
30K
18.64 mi14:03:123:35:0111:3246:00
14:48
#25354
20M
20.00 mi14:23:273:55:1611:4620:15
14:54
#25504
21M
21.00 mi14:40:334:12:2212:0117:06
17:06
#25615
35K
21.75 mi14:52:314:24:2012:0911:58
16:00
#25700
23M
23.00 mi15:13:044:44:5312:2320:33
16:25
#25817
24M
24.00 mi15:29:085:00:5712:3216:04
16:04
#25904
40K
24.85 mi15:42:545:14:4312:4013:46
16:06
#25960
25.2M
25.20 mi15:48:535:20:4212:445:59
17:21
#25981
Finish
26.22 mi16:02:205:34:0912:4513:27
13:12
#25999
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi22624134071340723921(Top 90%)14045(Top 93%)14045(Top 684%)
10K6.21 mi3.10 mi23004-38013616-20913616-20923253(Top 87%)13753(Top 91%)13753(Top 670%)
15K9.32 mi3.11 mi23369-36513807-19113807-19123921(Top 90%)14045(Top 93%)14045(Top 684%)
20K12.43 mi3.11 mi24083-71414122-31514122-31525389(Top 95%)14657(Top 97%)14657(Top 714%)
Half13.11 mi0.68 mi24259-17614200-7814200-7825938(Top 97%)14889(Top 98%)14889(Top 726%)
25K15.53 mi2.42 mi24819-56014433-23314433-23326060(Top 98%)14926(Top 98%)14926(Top 727%)
30K18.64 mi3.11 mi25354-53514639-20614639-20626362(Top 99%)15049(Top 99%)15049(Top 733%)
20M20.00 mi1.36 mi25504-15014699-6014699-6026257(Top 99%)14975(Top 99%)14975(Top 730%)
21M21.00 mi1.00 mi25615-11114754-5514754-5526447(Top 99%)15087(Top 99%)15087(Top 735%)
35K21.75 mi0.75 mi25700-8514786-3214786-3226520(Top 100%)15117(Top 100%)15117(Top 737%)
23M23.00 mi1.25 mi25817-11714832-4614832-4626527(Top 100%)15119(Top 100%)15119(Top 737%)
24M24.00 mi1.00 mi25904-8714867-3514867-3526532(Top 100%)15120(Top 100%)15120(Top 737%)
40K24.85 mi0.85 mi25960-5614893-2614893-2626428(Top 99%)15057(Top 99%)15057(Top 734%)
25.2M25.20 mi0.35 mi25981-2114902-914902-926421(Top 99%)15049(Top 99%)15049(Top 733%)
Finish26.22 mi1.02 mi25999-1814904-214904-226070(Top 98%)14844(Top 98%)14844(Top 723%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21story building
+97ft-345ft

Overall

23921

Males

14045

M50-54

14045

5K→10K

3.1 - 6.2 mi

Top 87%
×5story building
+79ft-138ft

Overall

23253

Males

13753

M50-54

13753

10K→15K

6.2 - 9.3 mi

Top 90%
×3story building
+67ft-78ft

Overall

23921

Males

14045

M50-54

14045

15K→20K

9.3 - 12.4 mi

Top 95%
×5story building
+106ft-86ft

Overall

25389

Males

14657

M50-54

14657

20K→Half

12.4 - 13.1 mi

Top 97%
×2story building
+19ft-37ft

Overall

25938

Males

14889

M50-54

14889

Half→25K

13.1 - 15.5 mi

Top 98%
×4story building
+66ft-88ft

Overall

26060

Males

14926

M50-54

14926

25K→30K

15.5 - 18.6 mi

Top 99%
×9story building
+181ft-148ft

Overall

26362

Males

15049

M50-54

15049

30K→20M

18.6 - 20.0 mi

Top 99%
×5story building
+64ft-50ft

Overall

26257

Males

14975

M50-54

14975

20M→21M

20.0 - 21.0 mi

Top 99%
×8story building
+106ft-24ft

Overall

26447

Males

15087

M50-54

15087

21M→35K

21.0 - 21.8 mi

Top 100%
×7story building
+17ft-86ft

Overall

26520

Males

15117

M50-54

15117

35K→23M

21.8 - 23.0 mi

Top 100%
×5story building
+23ft-63ft

Overall

26527

Males

15119

M50-54

15119

23M→24M

23.0 - 24.0 mi

Top 100%
×6story building
+12ft-82ft

Overall

26532

Males

15120

M50-54

15120

24M→40K

24.0 - 24.9 mi

Top 99%
×1story
+6ft-20ft

Overall

26428

Males

15057

M50-54

15057

40K→25.2M

24.9 - 25.2 mi

Top 99%
×1story
+13ft-16ft

Overall

26421

Males

15049

M50-54

15049

25.2M→Finish

25.2 - 26.2 mi

Top 98%
×2story building
+22ft-21ft

Overall

26070

Males

14844

M50-54

14844

Passing Analysis

Category:
Athletes Passed
185
Passed By
3560
Net Change
-3375
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22624
5K → 10K100480-380#22624#23004
10K → 15K45410-365#23004#23369
15K → 20K9723-714#23369#24083
20K → Half3179-176#24083#24259
Half → 25K4564-560#24259#24819
25K → 30K5540-535#24819#25354
30K → 20M3153-150#25354#25504
20M → 21M3114-111#25504#25615
21M → 35K388-85#25615#25700
35K → 23M1118-117#25700#25817
23M → 24M188-87#25817#25904
24M → 40K157-56#25904#25960
40K → 25.2M223-21#25960#25981
25.2M → Finish523-18#25981#25999
TOTALS1853560-3375
📊

Passing Visuals

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