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BOSTON MARATHON 2023

Zachary Switaj

Bib: 1094•M

NH

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 25%
Gender (Male)
#0 / 15176
Top 38%
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:29
Rank: #613
Start → 5K
18:29 | 5:57/mi
10K· 6.21 mi
36:25
Rank: #486 (+127)
5K → 10K
17:56 | 5:46/mi
15K· 9.32 mi
54:57
Rank: #535 (-49)
10K → 15K
18:32 | 5:58/mi
20K· 12.43 mi
1:13:27
Rank: #519 (+16)
15K → 20K
18:30 | 5:57/mi
Half· 13.11 mi
1:17:26
Rank: #515 (+4)
20K → Half
3:59 | 5:50/mi
25K· 15.53 mi
1:31:56
Rank: #508 (+7)
Half → 25K
14:30 | 5:59/mi
30K· 18.64 mi
1:51:18
Rank: #525 (-17)
25K → 30K
19:22 | 6:14/mi
20M
2:00:07
Rank: #559 (-34)
30K → 20M
8:49 | 6:29/mi
21M
2:07:28
Rank: #632 (-73)
20M → 21M
7:21 | 7:21/mi
35K· 21.75 mi
2:12:53
Rank: #709 (-77)
21M → 35K
5:25 | 7:14/mi
23M
2:22:45
Rank: #897 (-188)
35K → 23M
9:52 | 7:53/mi
24M
2:34:50
Rank: #1721 (-824)
23M → 24M
12:05 | 12:05/mi
40K· 24.85 mi
2:48:28
Rank: #3478 (-1757)
24M → 40K
13:38 | 15:57/mi
25.2M
2:54:06
Rank: #4458 (-980)
40K → 25.2M
5:38 | 16:20/mi
Finish· 26.22 mi
3:10:37
Rank: #6551 (-2093)
25.2M → Finish
16:31 | 16:12/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:17:26
Pace5:54 /mi
2nd Half
Distance13.11 mi
Time1:53:11
Pace8:38 /mi
📊Positive Split: 46.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:4518:295:5718:29
5:57
-
10K
6.21 mi10:36:4136:255:5217:56
5:46
-0:11
15K
9.32 mi10:55:1354:575:5418:32
5:58
+0:12
20K
12.43 mi11:13:431:13:275:5518:30
5:57
-0:01
Half
13.11 mi11:17:421:17:265:543:59
5:50
-0:07
25K
15.53 mi11:32:121:31:565:5514:30
5:59
+0:09
30K
18.64 mi11:51:341:51:185:5819:22
6:14
+0:15
20M
20.00 mi12:00:232:00:076:008:49
6:29
+0:15
21M
21.00 mi12:07:442:07:286:047:21
7:21
+0:52
35K
21.75 mi12:13:092:12:536:075:25
7:14
-0:07
23M
23.00 mi12:23:012:22:456:129:52
7:53
+0:39
24M
24.00 mi12:35:062:34:506:2712:05
12:05
+4:12
40K
24.85 mi12:48:442:48:286:4713:38
15:57
+3:52
25.2M
25.20 mi12:54:222:54:066:555:38
16:20
+0:23
Finish
26.22 mi13:10:533:10:377:1716:31
16:12
-0:08

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

5:46 /mi

Average Pace

7:17 /mi

Slowest Pace

16:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:22:45

75% of race

Time at Slower Pace

47:52

25% of race

Average Pace: 7:16 /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 mi10:18:4518:295:5718:29
5:57
#613
10K
6.21 mi10:36:4136:255:5217:56
5:46
#486
15K
9.32 mi10:55:1354:575:5418:32
5:58
#535
20K
12.43 mi11:13:431:13:275:5518:30
5:57
#519
Half
13.11 mi11:17:421:17:265:543:59
5:50
#515
25K
15.53 mi11:32:121:31:565:5514:30
5:59
#508
30K
18.64 mi11:51:341:51:185:5819:22
6:14
#525
20M
20.00 mi12:00:232:00:076:008:49
6:29
#559
21M
21.00 mi12:07:442:07:286:047:21
7:21
#632
35K
21.75 mi12:13:092:12:536:075:25
7:14
#709
23M
23.00 mi12:23:012:22:456:129:52
7:53
#897
24M
24.00 mi12:35:062:34:506:2712:05
12:05
#1721
40K
24.85 mi12:48:442:48:286:4713:38
15:57
#3478
25.2M
25.20 mi12:54:222:54:066:555:38
16:20
#4458
Finish
26.22 mi13:10:533:10:377:1716:31
16:12
#6551
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi613569569637(Top 2%)594(Top 4%)594(Top 11%)
10K6.21 mi3.10 mi486+127450+119450+119399(Top 1%)364(Top 2%)364(Top 7%)
15K9.32 mi3.11 mi535-49493-43493-43637(Top 2%)594(Top 4%)594(Top 11%)
20K12.43 mi3.11 mi519+16480+13480+13502(Top 2%)462(Top 3%)462(Top 9%)
Half13.11 mi0.68 mi515+4475+5475+5450(Top 2%)418(Top 3%)418(Top 8%)
25K15.53 mi2.42 mi508+7468+7468+7532(Top 2%)495(Top 3%)495(Top 9%)
30K18.64 mi3.11 mi525-17486-18486-18755(Top 3%)717(Top 5%)717(Top 14%)
20M20.00 mi1.36 mi559-34519-33519-331422(Top 5%)1357(Top 9%)1357(Top 26%)
21M21.00 mi1.00 mi632-73591-72591-723904(Top 15%)3612(Top 24%)3612(Top 68%)
35K21.75 mi0.75 mi709-77667-76667-766744(Top 25%)5730(Top 38%)5730(Top 108%)
23M23.00 mi1.25 mi897-188850-183850-1838917(Top 33%)6917(Top 46%)6917(Top 131%)
24M24.00 mi1.00 mi1721-8241646-7961646-79624622(Top 92%)14103(Top 93%)14103(Top 267%)
40K24.85 mi0.85 mi3478-17573286-16403286-164026397(Top 99%)15038(Top 99%)15038(Top 285%)
25.2M25.20 mi0.35 mi4458-9804154-8684154-86826207(Top 98%)14921(Top 98%)14921(Top 282%)
Finish26.22 mi1.02 mi6551-20935780-16265780-162626572(Top 100%)15141(Top 100%)15141(Top 286%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 2%
×21stories
+97ft-345ft

Overall

637

Males

594

M18-39

594

5K→10K

3.1 - 6.2 mi

Top 1%
×5stories
+79ft-138ft

Overall

399

Males

364

M18-39

364

10K→15K

6.2 - 9.3 mi

Top 2%
×3stories
+67ft-78ft

Overall

637

Males

594

M18-39

594

15K→20K

9.3 - 12.4 mi

Top 2%
×5stories
+106ft-86ft

Overall

502

Males

462

M18-39

462

20K→Half

12.4 - 13.1 mi

Top 2%
×2stories
+19ft-37ft

Overall

450

Males

418

M18-39

418

Half→25K

13.1 - 15.5 mi

Top 2%
×4stories
+66ft-88ft

Overall

532

Males

495

M18-39

495

25K→30K

15.5 - 18.6 mi

Top 3%
×9stories
+181ft-148ft

Overall

755

Males

717

M18-39

717

30K→20M

18.6 - 20.0 mi

Top 5%
×5stories
+64ft-50ft

Overall

1422

Males

1357

M18-39

1357

20M→21M

20.0 - 21.0 mi

Top 15%
×8stories
+106ft-24ft

Overall

3904

Males

3612

M18-39

3612

21M→35K

21.0 - 21.8 mi

Top 25%
×7stories
+17ft-86ft

Overall

6744

Males

5730

M18-39

5730

35K→23M

21.8 - 23.0 mi

Top 33%
×5stories
+23ft-63ft

Overall

8917

Males

6917

M18-39

6917

23M→24M

23.0 - 24.0 mi

Top 92%
×6stories
+12ft-82ft

Overall

24622

Males

14103

M18-39

14103

24M→40K

24.0 - 24.9 mi

Top 99%
×1story
+6ft-20ft

Overall

26397

Males

15038

M18-39

15038

40K→25.2M

24.9 - 25.2 mi

Top 98%
×1story
+13ft-16ft

Overall

26207

Males

14921

M18-39

14921

25.2M→Finish

25.2 - 26.2 mi

Top 100%
×2stories
+22ft-21ft

Overall

26572

Males

15141

M18-39

15141

Passing Analysis

Category:
Athletes Passed
198
Passed By
6136
Net Change
-5938
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#613
5K → 10K1292+127#613#486
10K → 15K554-49#486#535
15K → 20K2711+16#535#519
20K → Half73+4#519#515
Half → 25K136+7#515#508
25K → 30K1229-17#508#525
30K → 20M337-34#525#559
20M → 21M073-73#559#632
21M → 35K077-77#632#709
35K → 23M0188-188#709#897
23M → 24M0824-824#897#1721
24M → 40K11758-1757#1721#3478
40K → 25.2M0980-980#3478#4458
25.2M → Finish12094-2093#4458#6551
TOTALS1986136-5938
📊

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