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BOSTON MARATHON 2023

Zach Dombi

Bib: 331•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 2%
Gender (Male)
#0 / 15176
Top 3%
Age Group (M18-39)
#0 / 5285
Top 7%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
17:37
Rank: #242
Start → 5K
17:37 | 5:40/mi
10K· 6.21 mi
35:25
Rank: #296 (-54)
5K → 10K
17:48 | 5:44/mi
15K· 9.32 mi
53:15
Rank: #300 (-4)
10K → 15K
17:50 | 5:44/mi
20K· 12.43 mi
1:11:14
Rank: #300
15K → 20K
17:59 | 5:47/mi
Half· 13.11 mi
1:15:11
Rank: #305 (-5)
20K → Half
3:57 | 5:47/mi
25K· 15.53 mi
1:29:34
Rank: #309 (-4)
Half → 25K
14:23 | 5:56/mi
30K· 18.64 mi
1:48:31
Rank: #328 (-19)
25K → 30K
18:57 | 6:06/mi
20M
1:56:50
Rank: #330 (-2)
30K → 20M
8:19 | 6:07/mi
21M
2:03:21
Rank: #334 (-4)
20M → 21M
6:31 | 6:31/mi
35K· 21.75 mi
2:07:56
Rank: #344 (-10)
21M → 35K
4:35 | 6:08/mi
23M
2:15:48
Rank: #355 (-11)
35K → 23M
7:52 | 6:17/mi
24M
2:22:05
Rank: #371 (-16)
23M → 24M
6:17 | 6:17/mi
40K· 24.85 mi
2:27:44
Rank: #390 (-19)
24M → 40K
5:39 | 6:36/mi
25.2M
2:30:24
Rank: #413 (-23)
40K → 25.2M
2:40 | 7:44/mi
Finish· 26.22 mi
2:37:13
Rank: #440 (-27)
25.2M → Finish
6:49 | 6:41/mi
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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:15:11
Pace5:44 /mi
2nd Half
Distance13.11 mi
Time1:22:02
Pace6:15 /mi
📊Positive Split: 9.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:17:4117:375:4017:37
5:40
-
10K
6.21 mi10:35:2935:255:4217:48
5:44
+0:04
15K
9.32 mi10:53:1953:155:4317:50
5:44
0:00
20K
12.43 mi11:11:181:11:145:4417:59
5:47
+0:03
Half
13.11 mi11:15:151:15:115:443:57
5:47
0:00
25K
15.53 mi11:29:381:29:345:4614:23
5:56
+0:09
30K
18.64 mi11:48:351:48:315:4918:57
6:06
+0:10
20M
20.00 mi11:56:541:56:505:508:19
6:07
+0:01
21M
21.00 mi12:03:252:03:215:526:31
6:31
+0:24
35K
21.75 mi12:08:002:07:565:534:35
6:08
-0:23
23M
23.00 mi12:15:522:15:485:547:52
6:17
+0:09
24M
24.00 mi12:22:092:22:055:556:17
6:17
0:00
40K
24.85 mi12:27:482:27:445:575:39
6:36
+0:19
25.2M
25.20 mi12:30:282:30:245:582:40
7:44
+1:08
Finish
26.22 mi12:37:172:37:136:006:49
6:41
-1:03

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

5:40 /mi

Average Pace

6:00 /mi

Slowest Pace

7:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

1:15:11

48% of race

Time at Steady Pace

1:00:23

38% of race

Time at Slower Pace

21:39

14% of race

Average Pace: 6:00 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:17:4117:375:4017:37
5:40
#242
10K
6.21 mi10:35:2935:255:4217:48
5:44
#296
15K
9.32 mi10:53:1953:155:4317:50
5:44
#300
20K
12.43 mi11:11:181:11:145:4417:59
5:47
#300
Half
13.11 mi11:15:151:15:115:443:57
5:47
#305
25K
15.53 mi11:29:381:29:345:4614:23
5:56
#309
30K
18.64 mi11:48:351:48:315:4918:57
6:06
#328
20M
20.00 mi11:56:541:56:505:508:19
6:07
#330
21M
21.00 mi12:03:252:03:215:526:31
6:31
#334
35K
21.75 mi12:08:002:07:565:534:35
6:08
#344
23M
23.00 mi12:15:522:15:485:547:52
6:17
#355
24M
24.00 mi12:22:092:22:055:556:17
6:17
#371
40K
24.85 mi12:27:482:27:445:575:39
6:36
#390
25.2M
25.20 mi12:30:282:30:245:582:40
7:44
#413
Finish
26.22 mi12:37:172:37:136:006:49
6:41
#440
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi242242242308(Top 1%)275(Top 2%)275(Top 5%)
10K6.21 mi3.10 mi296-54268-26268-26347(Top 1%)312(Top 2%)312(Top 6%)
15K9.32 mi3.11 mi300-4270-2270-2308(Top 1%)275(Top 2%)275(Top 5%)
20K12.43 mi3.11 mi300270270294(Top 1%)266(Top 2%)266(Top 5%)
Half13.11 mi0.68 mi305-5273-3273-3381(Top 1%)352(Top 2%)352(Top 7%)
25K15.53 mi2.42 mi309-4277-4277-4437(Top 2%)404(Top 3%)404(Top 8%)
30K18.64 mi3.11 mi328-19296-19296-19503(Top 2%)471(Top 3%)471(Top 9%)
20M20.00 mi1.36 mi330-2298-2298-2509(Top 2%)475(Top 3%)475(Top 9%)
21M21.00 mi1.00 mi334-4303-5303-5670(Top 3%)631(Top 4%)631(Top 12%)
35K21.75 mi0.75 mi344-10313-10313-10982(Top 4%)932(Top 6%)932(Top 18%)
23M23.00 mi1.25 mi355-11324-11324-11779(Top 3%)738(Top 5%)738(Top 14%)
24M24.00 mi1.00 mi371-16339-15339-151288(Top 5%)1218(Top 8%)1218(Top 23%)
40K24.85 mi0.85 mi390-19357-18357-181915(Top 7%)1797(Top 12%)1797(Top 34%)
25.2M25.20 mi0.35 mi413-23378-21378-214919(Top 18%)4196(Top 28%)4196(Top 79%)
Finish26.22 mi1.02 mi440-27405-27405-273411(Top 13%)3053(Top 20%)3053(Top 58%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 1%
×21stories
+97ft-345ft

Overall

308

Males

275

M18-39

275

5K→10K

3.1 - 6.2 mi

Top 1%
×5stories
+79ft-138ft

Overall

347

Males

312

M18-39

312

10K→15K

6.2 - 9.3 mi

Top 1%
×3stories
+67ft-78ft

Overall

308

Males

275

M18-39

275

15K→20K

9.3 - 12.4 mi

Top 1%
×5stories
+106ft-86ft

Overall

294

Males

266

M18-39

266

20K→Half

12.4 - 13.1 mi

Top 1%
×2stories
+19ft-37ft

Overall

381

Males

352

M18-39

352

Half→25K

13.1 - 15.5 mi

Top 2%
×4stories
+66ft-88ft

Overall

437

Males

404

M18-39

404

25K→30K

15.5 - 18.6 mi

Top 2%
×9stories
+181ft-148ft

Overall

503

Males

471

M18-39

471

30K→20M

18.6 - 20.0 mi

Top 2%
×5stories
+64ft-50ft

Overall

509

Males

475

M18-39

475

20M→21M

20.0 - 21.0 mi

Top 3%
×8stories
+106ft-24ft

Overall

670

Males

631

M18-39

631

21M→35K

21.0 - 21.8 mi

Top 4%
×7stories
+17ft-86ft

Overall

982

Males

932

M18-39

932

35K→23M

21.8 - 23.0 mi

Top 3%
×5stories
+23ft-63ft

Overall

779

Males

738

M18-39

738

23M→24M

23.0 - 24.0 mi

Top 5%
×6stories
+12ft-82ft

Overall

1288

Males

1218

M18-39

1218

24M→40K

24.0 - 24.9 mi

Top 7%
×1story
+6ft-20ft

Overall

1915

Males

1797

M18-39

1797

40K→25.2M

24.9 - 25.2 mi

Top 18%
×1story
+13ft-16ft

Overall

4919

Males

4196

M18-39

4196

25.2M→Finish

25.2 - 26.2 mi

Top 13%
×2stories
+22ft-21ft

Overall

3411

Males

3053

M18-39

3053

Passing Analysis

Category:
Athletes Passed
73
Passed By
271
Net Change
-198
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#242
5K → 10K963-54#242#296
10K → 15K913-4#296#300
15K → 20K990#300#300
20K → Half16-5#300#305
Half → 25K37-4#305#309
25K → 30K928-19#309#328
30K → 20M79-2#328#330
20M → 21M48-4#330#334
21M → 35K212-10#334#344
35K → 23M617-11#344#355
23M → 24M218-16#355#371
24M → 40K726-19#371#390
40K → 25.2M225-23#390#413
25.2M → Finish330-27#413#440
TOTALS73271-198
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
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