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BOSTON MARATHON 2023

Matthew Kiesz

Bib: 987•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 2%
Gender (Male)
#0 / 15176
Top 3%
Division (M18-39)
#0 / 5285
Top 8%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:19
Rank: #522
Start → 5K
18:19 | 5:54/mi
10K· 6.21 mi
36:31
Rank: #516 (+6)
5K → 10K
18:12 | 5:51/mi
15K· 9.32 mi
54:50
Rank: #515 (+1)
10K → 15K
18:19 | 5:54/mi
20K· 12.43 mi
1:13:22
Rank: #503 (+12)
15K → 20K
18:32 | 5:58/mi
Half· 13.11 mi
1:17:21
Rank: #497 (+6)
20K → Half
3:59 | 5:50/mi
25K· 15.53 mi
1:31:58
Rank: #513 (-16)
Half → 25K
14:37 | 6:02/mi
30K· 18.64 mi
1:51:00
Rank: #501 (+12)
25K → 30K
19:02 | 6:08/mi
20M
1:59:24
Rank: #497 (+4)
30K → 20M
8:24 | 6:11/mi
21M
2:06:08
Rank: #511 (-14)
20M → 21M
6:44 | 6:44/mi
35K· 21.75 mi
2:10:38
Rank: #517 (-6)
21M → 35K
4:30 | 6:01/mi
23M
2:18:34
Rank: #527 (-10)
35K → 23M
7:56 | 6:20/mi
24M
2:24:41
Rank: #529 (-2)
23M → 24M
6:07 | 6:07/mi
40K· 24.85 mi
2:29:54
Rank: #522 (+7)
24M → 40K
5:13 | 6:06/mi
25.2M
2:32:14
Rank: #524 (-2)
40K → 25.2M
2:20 | 6:46/mi
Finish· 26.22 mi
2:38:23
Rank: #520 (+4)
25.2M → Finish
6:09 | 6:02/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:17:21
Pace5:54 /mi
2nd Half
Distance13.11 mi
Time1:21:02
Pace6:11 /mi
📊Positive Split: 4.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:2718:195:5418:19
5:54
-
10K
6.21 mi10:36:3936:315:5318:12
5:51
-0:03
15K
9.32 mi10:54:5854:505:5318:19
5:54
+0:03
20K
12.43 mi11:13:301:13:225:5418:32
5:58
+0:04
Half
13.11 mi11:17:291:17:215:543:59
5:50
-0:08
25K
15.53 mi11:32:061:31:585:5514:37
6:02
+0:12
30K
18.64 mi11:51:081:51:005:5719:02
6:08
+0:06
20M
20.00 mi11:59:321:59:245:588:24
6:11
+0:03
21M
21.00 mi12:06:162:06:086:006:44
6:44
+0:33
35K
21.75 mi12:10:462:10:386:004:30
6:01
-0:43
23M
23.00 mi12:18:422:18:346:017:56
6:20
+0:19
24M
24.00 mi12:24:492:24:416:026:07
6:07
-0:13
40K
24.85 mi12:30:022:29:546:025:13
6:06
-0:01
25.2M
25.20 mi12:32:222:32:146:022:20
6:46
+0:40
Finish
26.22 mi12:38:312:38:236:036:09
6:02
-0:44

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

5:50 /mi

Average Pace

6:03 /mi

Slowest Pace

6:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:29:19

94% of race

Time at Steady Pace

9:04

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:02 /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 mi10:18:2718:195:5418:19
5:54
#522
10K
6.21 mi10:36:3936:315:5318:12
5:51
#516
15K
9.32 mi10:54:5854:505:5318:19
5:54
#515
20K
12.43 mi11:13:301:13:225:5418:32
5:58
#503
Half
13.11 mi11:17:291:17:215:543:59
5:50
#497
25K
15.53 mi11:32:061:31:585:5514:37
6:02
#513
30K
18.64 mi11:51:081:51:005:5719:02
6:08
#501
20M
20.00 mi11:59:321:59:245:588:24
6:11
#497
21M
21.00 mi12:06:162:06:086:006:44
6:44
#511
35K
21.75 mi12:10:462:10:386:004:30
6:01
#517
23M
23.00 mi12:18:422:18:346:017:56
6:20
#527
24M
24.00 mi12:24:492:24:416:026:07
6:07
#529
40K
24.85 mi12:30:022:29:546:025:13
6:06
#522
25.2M
25.20 mi12:32:222:32:146:022:20
6:46
#524
Finish
26.22 mi12:38:312:38:236:036:09
6:02
#520
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi522480480502(Top 2%)460(Top 3%)460(Top 9%)
10K6.21 mi3.10 mi516+6474+6474+6516(Top 2%)475(Top 3%)475(Top 9%)
15K9.32 mi3.11 mi515+1473+1473+1502(Top 2%)460(Top 3%)460(Top 9%)
20K12.43 mi3.11 mi503+12464+9464+9515(Top 2%)475(Top 3%)475(Top 9%)
Half13.11 mi0.68 mi497+6458+6458+6448(Top 2%)416(Top 3%)416(Top 8%)
25K15.53 mi2.42 mi513-16473-15473-15582(Top 2%)542(Top 4%)542(Top 10%)
30K18.64 mi3.11 mi501+12463+10463+10543(Top 2%)509(Top 3%)509(Top 10%)
20M20.00 mi1.36 mi497+4459+4459+4614(Top 2%)578(Top 4%)578(Top 11%)
21M21.00 mi1.00 mi511-14473-14473-141175(Top 4%)1117(Top 7%)1117(Top 21%)
35K21.75 mi0.75 mi517-6479-6479-6703(Top 3%)663(Top 4%)663(Top 13%)
23M23.00 mi1.25 mi527-10489-10489-10907(Top 3%)862(Top 6%)862(Top 16%)
24M24.00 mi1.00 mi529-2491-2491-2780(Top 3%)738(Top 5%)738(Top 14%)
40K24.85 mi0.85 mi522+7485+6485+6479(Top 2%)450(Top 3%)450(Top 9%)
25.2M25.20 mi0.35 mi524-2487-2487-21016(Top 4%)963(Top 6%)963(Top 18%)
Finish26.22 mi1.02 mi520+4485+2485+2805(Top 3%)771(Top 5%)771(Top 15%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 2%
×21stories
+97ft-345ft

Overall

502

Males

460

M18-39

460

5K→10K

3.1 - 6.2 mi

Top 2%
×5stories
+79ft-138ft

Overall

516

Males

475

M18-39

475

10K→15K

6.2 - 9.3 mi

Top 2%
×3stories
+67ft-78ft

Overall

502

Males

460

M18-39

460

15K→20K

9.3 - 12.4 mi

Top 2%
×5stories
+106ft-86ft

Overall

515

Males

475

M18-39

475

20K→Half

12.4 - 13.1 mi

Top 2%
×2stories
+19ft-37ft

Overall

448

Males

416

M18-39

416

Half→25K

13.1 - 15.5 mi

Top 2%
×4stories
+66ft-88ft

Overall

582

Males

542

M18-39

542

25K→30K

15.5 - 18.6 mi

Top 2%
×9stories
+181ft-148ft

Overall

543

Males

509

M18-39

509

30K→20M

18.6 - 20.0 mi

Top 2%
×5stories
+64ft-50ft

Overall

614

Males

578

M18-39

578

20M→21M

20.0 - 21.0 mi

Top 4%
×8stories
+106ft-24ft

Overall

1175

Males

1117

M18-39

1117

21M→35K

21.0 - 21.8 mi

Top 3%
×7stories
+17ft-86ft

Overall

703

Males

663

M18-39

663

35K→23M

21.8 - 23.0 mi

Top 3%
×5stories
+23ft-63ft

Overall

907

Males

862

M18-39

862

23M→24M

23.0 - 24.0 mi

Top 3%
×6stories
+12ft-82ft

Overall

780

Males

738

M18-39

738

24M→40K

24.0 - 24.9 mi

Top 2%
×1story
+6ft-20ft

Overall

479

Males

450

M18-39

450

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

1016

Males

963

M18-39

963

25.2M→Finish

25.2 - 26.2 mi

Top 3%
×2stories
+22ft-21ft

Overall

805

Males

771

M18-39

771

Passing Analysis

Category:
Athletes Passed
176
Passed By
174
Net Change
+2
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#522
5K → 10K3630+6#522#516
10K → 15K1312+1#516#515
15K → 20K2614+12#515#503
20K → Half93+6#503#497
Half → 25K622-16#497#513
25K → 30K2614+12#513#501
30K → 20M84+4#501#497
20M → 21M418-14#497#511
21M → 35K39-6#511#517
35K → 23M919-10#517#527
23M → 24M911-2#527#529
24M → 40K103+7#529#522
40K → 25.2M24-2#522#524
25.2M → Finish1511+4#524#520
TOTALS176174+2
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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