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BOSTON MARATHON 2023

Zachary Helner

Bib: 5113•M

MI

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 9%
Gender (Male)
#0 / 15176
Top 15%
Division (M18-39)
#0 / 5285
Top 33%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:51
Rank: #3749
Start → 5K
20:51 | 6:43/mi
10K· 6.21 mi
41:23
Rank: #3605 (+144)
5K → 10K
20:32 | 6:37/mi
15K· 9.32 mi
1:01:58
Rank: #3536 (+69)
10K → 15K
20:35 | 6:38/mi
20K· 12.43 mi
1:22:20
Rank: #3251 (+285)
15K → 20K
20:22 | 6:33/mi
Half· 13.11 mi
1:26:45
Rank: #3210 (+41)
20K → Half
4:25 | 6:28/mi
25K· 15.53 mi
1:42:33
Rank: #3008 (+202)
Half → 25K
15:48 | 6:31/mi
30K· 18.64 mi
2:02:49
Rank: #2689 (+319)
25K → 30K
20:16 | 6:31/mi
20M
2:11:39
Rank: #2554 (+135)
30K → 20M
8:50 | 6:30/mi
21M
2:18:27
Rank: #2446 (+108)
20M → 21M
6:48 | 6:48/mi
35K· 21.75 mi
2:23:14
Rank: #2407 (+39)
21M → 35K
4:47 | 6:24/mi
23M
2:31:33
Rank: #2358 (+49)
35K → 23M
8:19 | 6:39/mi
24M
2:37:59
Rank: #2312 (+46)
23M → 24M
6:26 | 6:26/mi
40K· 24.85 mi
2:43:48
Rank: #2301 (+11)
24M → 40K
5:49 | 6:48/mi
25.2M
2:46:22
Rank: #2308 (-7)
40K → 25.2M
2:34 | 7:27/mi
Finish· 26.22 mi
2:53:21
Rank: #2338 (-30)
25.2M → Finish
6:59 | 6:51/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:26:45
Pace6:37 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:26:36
Pace6:36 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:2020:516:4320:51
6:43
-
10K
6.21 mi10:43:5241:236:4020:32
6:37
-0:06
15K
9.32 mi11:04:271:01:586:3920:35
6:38
+0:01
20K
12.43 mi11:24:491:22:206:3820:22
6:33
-0:05
Half
13.11 mi11:29:141:26:456:374:25
6:28
-0:05
25K
15.53 mi11:45:021:42:336:3615:48
6:31
+0:03
30K
18.64 mi12:05:182:02:496:3520:16
6:31
0:00
20M
20.00 mi12:14:082:11:396:358:50
6:30
-0:01
21M
21.00 mi12:20:562:18:276:366:48
6:48
+0:18
35K
21.75 mi12:25:432:23:146:354:47
6:24
-0:24
23M
23.00 mi12:34:022:31:336:358:19
6:39
+0:15
24M
24.00 mi12:40:282:37:596:356:26
6:26
-0:13
40K
24.85 mi12:46:172:43:486:355:49
6:48
+0:22
25.2M
25.20 mi12:48:512:46:226:362:34
7:27
+0:39
Finish
26.22 mi12:55:502:53:216:376:59
6:51
-0:36

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

6:24 /mi

Average Pace

6:37 /mi

Slowest Pace

7:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:50:47

99% of race

Time at Steady Pace

2:34

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:37 /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 mi10:23:2020:516:4320:51
6:43
#3749
10K
6.21 mi10:43:5241:236:4020:32
6:37
#3605
15K
9.32 mi11:04:271:01:586:3920:35
6:38
#3536
20K
12.43 mi11:24:491:22:206:3820:22
6:33
#3251
Half
13.11 mi11:29:141:26:456:374:25
6:28
#3210
25K
15.53 mi11:45:021:42:336:3615:48
6:31
#3008
30K
18.64 mi12:05:182:02:496:3520:16
6:31
#2689
20M
20.00 mi12:14:082:11:396:358:50
6:30
#2554
21M
21.00 mi12:20:562:18:276:366:48
6:48
#2446
35K
21.75 mi12:25:432:23:146:354:47
6:24
#2407
23M
23.00 mi12:34:022:31:336:358:19
6:39
#2358
24M
24.00 mi12:40:282:37:596:356:26
6:26
#2312
40K
24.85 mi12:46:172:43:486:355:49
6:48
#2301
25.2M
25.20 mi12:48:512:46:226:362:34
7:27
#2308
Finish
26.22 mi12:55:502:53:216:376:59
6:51
#2338
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3749352335233480(Top 13%)3294(Top 22%)3294(Top 62%)
10K6.21 mi3.10 mi3605+1443400+1233400+1233547(Top 13%)3353(Top 22%)3353(Top 63%)
15K9.32 mi3.11 mi3536+693344+563344+563480(Top 13%)3294(Top 22%)3294(Top 62%)
20K12.43 mi3.11 mi3251+2853093+2513093+2512589(Top 10%)2477(Top 16%)2477(Top 47%)
Half13.11 mi0.68 mi3210+413055+383055+382591(Top 10%)2485(Top 16%)2485(Top 47%)
25K15.53 mi2.42 mi3008+2022872+1832872+1832245(Top 8%)2153(Top 14%)2153(Top 41%)
30K18.64 mi3.11 mi2689+3192569+3032569+3031663(Top 6%)1590(Top 10%)1590(Top 30%)
20M20.00 mi1.36 mi2554+1352442+1272442+1271462(Top 5%)1391(Top 9%)1391(Top 26%)
21M21.00 mi1.00 mi2446+1082343+992343+991422(Top 5%)1356(Top 9%)1356(Top 26%)
35K21.75 mi0.75 mi2407+392305+382305+381960(Top 7%)1864(Top 12%)1864(Top 35%)
23M23.00 mi1.25 mi2358+492257+482257+481933(Top 7%)1834(Top 12%)1834(Top 35%)
24M24.00 mi1.00 mi2312+462213+442213+441815(Top 7%)1711(Top 11%)1711(Top 32%)
40K24.85 mi0.85 mi2301+112202+112202+112817(Top 11%)2591(Top 17%)2591(Top 49%)
25.2M25.20 mi0.35 mi2308-72210-82210-83550(Top 13%)3178(Top 21%)3178(Top 60%)
Finish26.22 mi1.02 mi2338-302238-282238-284334(Top 16%)3792(Top 25%)3792(Top 72%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 13%
×21stories
+97ft-345ft

Overall

3480

Males

3294

M18-39

3294

5K→10K

3.1 - 6.2 mi

Top 13%
×5stories
+79ft-138ft

Overall

3547

Males

3353

M18-39

3353

10K→15K

6.2 - 9.3 mi

Top 13%
×3stories
+67ft-78ft

Overall

3480

Males

3294

M18-39

3294

15K→20K

9.3 - 12.4 mi

Top 10%
×5stories
+106ft-86ft

Overall

2589

Males

2477

M18-39

2477

20K→Half

12.4 - 13.1 mi

Top 10%
×2stories
+19ft-37ft

Overall

2591

Males

2485

M18-39

2485

Half→25K

13.1 - 15.5 mi

Top 8%
×4stories
+66ft-88ft

Overall

2245

Males

2153

M18-39

2153

25K→30K

15.5 - 18.6 mi

Top 6%
×9stories
+181ft-148ft

Overall

1663

Males

1590

M18-39

1590

30K→20M

18.6 - 20.0 mi

Top 5%
×5stories
+64ft-50ft

Overall

1462

Males

1391

M18-39

1391

20M→21M

20.0 - 21.0 mi

Top 5%
×8stories
+106ft-24ft

Overall

1422

Males

1356

M18-39

1356

21M→35K

21.0 - 21.8 mi

Top 7%
×7stories
+17ft-86ft

Overall

1960

Males

1864

M18-39

1864

35K→23M

21.8 - 23.0 mi

Top 7%
×5stories
+23ft-63ft

Overall

1933

Males

1834

M18-39

1834

23M→24M

23.0 - 24.0 mi

Top 7%
×6stories
+12ft-82ft

Overall

1815

Males

1711

M18-39

1711

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

2817

Males

2591

M18-39

2591

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3550

Males

3178

M18-39

3178

25.2M→Finish

25.2 - 26.2 mi

Top 16%
×2stories
+22ft-21ft

Overall

4334

Males

3792

M18-39

3792

Passing Analysis

Category:
Athletes Passed
1749
Passed By
338
Net Change
+1411
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3749
5K → 10K283139+144#3749#3605
10K → 15K14475+69#3605#3536
15K → 20K2905+285#3536#3251
20K → Half432+41#3251#3210
Half → 25K2031+202#3210#3008
25K → 30K3223+319#3008#2689
30K → 20M1350+135#2689#2554
20M → 21M1113+108#2554#2446
21M → 35K456+39#2446#2407
35K → 23M6617+49#2407#2358
23M → 24M493+46#2358#2312
24M → 40K3120+11#2312#2301
40K → 25.2M916-7#2301#2308
25.2M → Finish1848-30#2308#2338
TOTALS1749338+1411
📊

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