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BOSTON MARATHON 2023

Kirsten Leemans

Bib: 3432•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 5%
Gender (Male)
#0 / 15176
Top 8%
Masters (Masters Men)
#0 / 9891
Top 2%
Division (M50-54)
#0 / 2052
Top 0.9%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:47
Rank: #1695
Start → 5K
19:47 | 6:22/mi
10K· 6.21 mi
39:04
Rank: #1519 (+176)
5K → 10K
19:17 | 6:12/mi
15K· 9.32 mi
58:30
Rank: #1480 (+39)
10K → 15K
19:26 | 6:15/mi
20K· 12.43 mi
1:18:08
Rank: #1460 (+20)
15K → 20K
19:38 | 6:19/mi
Half· 13.11 mi
1:22:22
Rank: #1455 (+5)
20K → Half
4:14 | 6:12/mi
25K· 15.53 mi
1:37:45
Rank: #1447 (+8)
Half → 25K
15:23 | 6:21/mi
30K· 18.64 mi
1:57:49
Rank: #1423 (+24)
25K → 30K
20:04 | 6:28/mi
20M
2:06:32
Rank: #1390 (+33)
30K → 20M
8:43 | 6:25/mi
21M
2:13:21
Rank: #1373 (+17)
20M → 21M
6:49 | 6:49/mi
35K· 21.75 mi
2:17:58
Rank: #1361 (+12)
21M → 35K
4:37 | 6:10/mi
23M
2:26:00
Rank: #1326 (+35)
35K → 23M
8:02 | 6:25/mi
24M
2:32:19
Rank: #1304 (+22)
23M → 24M
6:19 | 6:19/mi
40K· 24.85 mi
2:37:53
Rank: #1301 (+3)
24M → 40K
5:34 | 6:31/mi
25.2M
2:40:21
Rank: #1309 (-8)
40K → 25.2M
2:28 | 7:09/mi
Finish· 26.22 mi
2:47:07
Rank: #1348 (-39)
25.2M → Finish
6:46 | 6:38/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:22:22
Pace6:17 /mi
2nd Half
Distance13.11 mi
Time1:24:45
Pace6:28 /mi
📊Positive Split: 2.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:5319:476:2219:47
6:22
-
10K
6.21 mi10:40:1039:046:1719:17
6:12
-0:10
15K
9.32 mi10:59:3658:306:1719:26
6:15
+0:03
20K
12.43 mi11:19:141:18:086:1719:38
6:19
+0:04
Half
13.11 mi11:23:281:22:226:174:14
6:12
-0:07
25K
15.53 mi11:38:511:37:456:1815:23
6:21
+0:09
30K
18.64 mi11:58:551:57:496:1920:04
6:28
+0:07
20M
20.00 mi12:07:382:06:326:208:43
6:25
-0:03
21M
21.00 mi12:14:272:13:216:216:49
6:49
+0:24
35K
21.75 mi12:19:042:17:586:214:37
6:10
-0:39
23M
23.00 mi12:27:062:26:006:218:02
6:25
+0:15
24M
24.00 mi12:33:252:32:196:216:19
6:19
-0:06
40K
24.85 mi12:38:592:37:536:215:34
6:31
+0:12
25.2M
25.20 mi12:41:272:40:216:222:28
7:09
+0:38
Finish
26.22 mi12:48:132:47:076:236:46
6:38
-0:31

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

6:10 /mi

Average Pace

6:23 /mi

Slowest Pace

7:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:37:50

94% of race

Time at Steady Pace

9:17

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:22 /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 mi10:20:5319:476:2219:47
6:22
#1695
10K
6.21 mi10:40:1039:046:1719:17
6:12
#1519
15K
9.32 mi10:59:3658:306:1719:26
6:15
#1480
20K
12.43 mi11:19:141:18:086:1719:38
6:19
#1460
Half
13.11 mi11:23:281:22:226:174:14
6:12
#1455
25K
15.53 mi11:38:511:37:456:1815:23
6:21
#1447
30K
18.64 mi11:58:551:57:496:1920:04
6:28
#1423
20M
20.00 mi12:07:382:06:326:208:43
6:25
#1390
21M
21.00 mi12:14:272:13:216:216:49
6:49
#1373
35K
21.75 mi12:19:042:17:586:214:37
6:10
#1361
23M
23.00 mi12:27:062:26:006:218:02
6:25
#1326
24M
24.00 mi12:33:252:32:196:216:19
6:19
#1304
40K
24.85 mi12:38:592:37:536:215:34
6:31
#1301
25.2M
25.20 mi12:41:272:40:216:222:28
7:09
#1309
Finish
26.22 mi12:48:132:47:076:236:46
6:38
#1348
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi1695161516151458(Top 5%)1391(Top 9%)1391(Top 68%)
10K6.21 mi3.10 mi1519+1761449+1661449+1661390(Top 5%)1325(Top 9%)1325(Top 65%)
15K9.32 mi3.11 mi1480+391411+381411+381458(Top 5%)1391(Top 9%)1391(Top 68%)
20K12.43 mi3.11 mi1460+201393+181393+181479(Top 6%)1413(Top 9%)1413(Top 69%)
Half13.11 mi0.68 mi1455+51388+51388+51442(Top 5%)1379(Top 9%)1379(Top 67%)
25K15.53 mi2.42 mi1447+81381+71381+71515(Top 6%)1451(Top 10%)1451(Top 71%)
30K18.64 mi3.11 mi1423+241359+221359+221423(Top 5%)1361(Top 9%)1361(Top 66%)
20M20.00 mi1.36 mi1390+331328+311328+311194(Top 4%)1136(Top 7%)1136(Top 55%)
21M21.00 mi1.00 mi1373+171311+171311+171483(Top 6%)1413(Top 9%)1413(Top 69%)
35K21.75 mi0.75 mi1361+121298+131298+131193(Top 4%)1136(Top 7%)1136(Top 55%)
23M23.00 mi1.25 mi1326+351265+331265+331172(Top 4%)1106(Top 7%)1106(Top 54%)
24M24.00 mi1.00 mi1304+221243+221243+221413(Top 5%)1336(Top 9%)1336(Top 65%)
40K24.85 mi0.85 mi1301+31240+31240+31611(Top 6%)1515(Top 10%)1515(Top 74%)
25.2M25.20 mi0.35 mi1309-81247-71247-72416(Top 9%)2231(Top 15%)2231(Top 109%)
Finish26.22 mi1.02 mi1348-391284-371284-373234(Top 12%)2906(Top 19%)2906(Top 142%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1458

Males

1391

M50-54

1391

5K→10K

3.1 - 6.2 mi

Top 5%
×5stories
+79ft-138ft

Overall

1390

Males

1325

M50-54

1325

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1458

Males

1391

M50-54

1391

15K→20K

9.3 - 12.4 mi

Top 6%
×5stories
+106ft-86ft

Overall

1479

Males

1413

M50-54

1413

20K→Half

12.4 - 13.1 mi

Top 5%
×2stories
+19ft-37ft

Overall

1442

Males

1379

M50-54

1379

Half→25K

13.1 - 15.5 mi

Top 6%
×4stories
+66ft-88ft

Overall

1515

Males

1451

M50-54

1451

25K→30K

15.5 - 18.6 mi

Top 5%
×9stories
+181ft-148ft

Overall

1423

Males

1361

M50-54

1361

30K→20M

18.6 - 20.0 mi

Top 4%
×5stories
+64ft-50ft

Overall

1194

Males

1136

M50-54

1136

20M→21M

20.0 - 21.0 mi

Top 6%
×8stories
+106ft-24ft

Overall

1483

Males

1413

M50-54

1413

21M→35K

21.0 - 21.8 mi

Top 4%
×7stories
+17ft-86ft

Overall

1193

Males

1136

M50-54

1136

35K→23M

21.8 - 23.0 mi

Top 4%
×5stories
+23ft-63ft

Overall

1172

Males

1106

M50-54

1106

23M→24M

23.0 - 24.0 mi

Top 5%
×6stories
+12ft-82ft

Overall

1413

Males

1336

M50-54

1336

24M→40K

24.0 - 24.9 mi

Top 6%
×1story
+6ft-20ft

Overall

1611

Males

1515

M50-54

1515

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1story
+13ft-16ft

Overall

2416

Males

2231

M50-54

2231

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2stories
+22ft-21ft

Overall

3234

Males

2906

M50-54

2906

Passing Analysis

Category:
Athletes Passed
641
Passed By
294
Net Change
+347
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1695
5K → 10K20125+176#1695#1519
10K → 15K6930+39#1519#1480
15K → 20K5838+20#1480#1460
20K → Half116+5#1460#1455
Half → 25K3931+8#1455#1447
25K → 30K6137+24#1447#1423
30K → 20M418+33#1423#1390
20M → 21M3114+17#1390#1373
21M → 35K197+12#1373#1361
35K → 23M449+35#1361#1326
23M → 24M3210+22#1326#1304
24M → 40K1512+3#1304#1301
40K → 25.2M1018-8#1301#1309
25.2M → Finish1049-39#1309#1348
TOTALS641294+347
📊

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