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BOSTON MARATHON 2023

Zachary Magin

Bib: 1932•M

CT

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 15%
Gender (Male)
#0 / 15176
Top 25%
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
21:35
Rank: #5904
Start → 5K
21:35 | 6:57/mi
10K· 6.21 mi
43:00
Rank: #5964 (-60)
5K → 10K
21:25 | 6:54/mi
15K· 9.32 mi
1:04:22
Rank: #5878 (+86)
10K → 15K
21:22 | 6:53/mi
20K· 12.43 mi
1:25:36
Rank: #5612 (+266)
15K → 20K
21:14 | 6:50/mi
Half· 13.11 mi
1:30:16
Rank: #5617 (-5)
20K → Half
4:40 | 6:50/mi
25K· 15.53 mi
1:46:46
Rank: #5392 (+225)
Half → 25K
16:30 | 6:48/mi
30K· 18.64 mi
2:07:55
Rank: #4858 (+534)
25K → 30K
21:09 | 6:48/mi
20M
2:17:09
Rank: #4652 (+206)
30K → 20M
9:14 | 6:48/mi
21M
2:24:03
Rank: #4402 (+250)
20M → 21M
6:54 | 6:54/mi
35K· 21.75 mi
2:28:55
Rank: #4284 (+118)
21M → 35K
4:52 | 6:30/mi
23M
2:37:26
Rank: #4156 (+128)
35K → 23M
8:31 | 6:48/mi
24M
2:44:02
Rank: #4040 (+116)
23M → 24M
6:36 | 6:36/mi
40K· 24.85 mi
2:49:52
Rank: #3979 (+61)
24M → 40K
5:50 | 6:49/mi
25.2M
2:52:26
Rank: #3972 (+7)
40K → 25.2M
2:34 | 7:27/mi
Finish· 26.22 mi
2:59:39
Rank: #4093 (-121)
25.2M → Finish
7:13 | 7:05/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:30:16
Pace6:53 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:29:23
Pace6:49 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:4621:356:5721:35
6:57
-
10K
6.21 mi10:45:1143:006:5521:25
6:54
-0:03
15K
9.32 mi11:06:331:04:226:5421:22
6:53
-0:01
20K
12.43 mi11:27:471:25:366:5321:14
6:50
-0:03
Half
13.11 mi11:32:271:30:166:534:40
6:50
0:00
25K
15.53 mi11:48:571:46:466:5216:30
6:48
-0:02
30K
18.64 mi12:10:062:07:556:5221:09
6:48
0:00
20M
20.00 mi12:19:202:17:096:519:14
6:48
0:00
21M
21.00 mi12:26:142:24:036:526:54
6:54
+0:06
35K
21.75 mi12:31:062:28:556:514:52
6:30
-0:24
23M
23.00 mi12:39:372:37:266:518:31
6:48
+0:18
24M
24.00 mi12:46:132:44:026:506:36
6:36
-0:12
40K
24.85 mi12:52:032:49:526:505:50
6:49
+0:13
25.2M
25.20 mi12:54:372:52:266:512:34
7:27
+0:38
Finish
26.22 mi13:01:502:59:396:517:13
7:05
-0:22

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

6:30 /mi

Average Pace

6:51 /mi

Slowest Pace

7:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:57:05

99% of race

Time at Steady Pace

2:34

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:51 /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 mi10:23:4621:356:5721:35
6:57
#5904
10K
6.21 mi10:45:1143:006:5521:25
6:54
#5964
15K
9.32 mi11:06:331:04:226:5421:22
6:53
#5878
20K
12.43 mi11:27:471:25:366:5321:14
6:50
#5612
Half
13.11 mi11:32:271:30:166:534:40
6:50
#5617
25K
15.53 mi11:48:571:46:466:5216:30
6:48
#5392
30K
18.64 mi12:10:062:07:556:5221:09
6:48
#4858
20M
20.00 mi12:19:202:17:096:519:14
6:48
#4652
21M
21.00 mi12:26:142:24:036:526:54
6:54
#4402
35K
21.75 mi12:31:062:28:556:514:52
6:30
#4284
23M
23.00 mi12:39:372:37:266:518:31
6:48
#4156
24M
24.00 mi12:46:132:44:026:506:36
6:36
#4040
40K
24.85 mi12:52:032:49:526:505:50
6:49
#3979
25.2M
25.20 mi12:54:372:52:266:512:34
7:27
#3972
Finish
26.22 mi13:01:502:59:396:517:13
7:05
#4093
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5904540954095767(Top 22%)5280(Top 35%)5280(Top 100%)
10K6.21 mi3.10 mi5964-605456-475456-476059(Top 23%)5506(Top 36%)5506(Top 104%)
15K9.32 mi3.11 mi5878+865381+755381+755767(Top 22%)5280(Top 35%)5280(Top 100%)
20K12.43 mi3.11 mi5612+2665170+2115170+2114752(Top 18%)4414(Top 29%)4414(Top 84%)
Half13.11 mi0.68 mi5617-55177-75177-75515(Top 21%)5075(Top 33%)5075(Top 96%)
25K15.53 mi2.42 mi5392+2254983+1944983+1944196(Top 16%)3927(Top 26%)3927(Top 74%)
30K18.64 mi3.11 mi4858+5344519+4644519+4643041(Top 11%)2874(Top 19%)2874(Top 54%)
20M20.00 mi1.36 mi4652+2064338+1814338+1812801(Top 11%)2648(Top 17%)2648(Top 50%)
21M21.00 mi1.00 mi4402+2504112+2264112+2261779(Top 7%)1692(Top 11%)1692(Top 32%)
35K21.75 mi0.75 mi4284+1184007+1054007+1052478(Top 9%)2350(Top 15%)2350(Top 44%)
23M23.00 mi1.25 mi4156+1283891+1163891+1162691(Top 10%)2524(Top 17%)2524(Top 48%)
24M24.00 mi1.00 mi4040+1163785+1063785+1062588(Top 10%)2416(Top 16%)2416(Top 46%)
40K24.85 mi0.85 mi3979+613726+593726+592958(Top 11%)2725(Top 18%)2725(Top 52%)
25.2M25.20 mi0.35 mi3972+73718+83718+83622(Top 14%)3250(Top 21%)3250(Top 61%)
Finish26.22 mi1.02 mi4093-1213828-1103828-1105682(Top 21%)4709(Top 31%)4709(Top 89%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 22%
×21stories
+97ft-345ft

Overall

5767

Males

5280

M18-39

5280

5K→10K

3.1 - 6.2 mi

Top 23%
×5stories
+79ft-138ft

Overall

6059

Males

5506

M18-39

5506

10K→15K

6.2 - 9.3 mi

Top 22%
×3stories
+67ft-78ft

Overall

5767

Males

5280

M18-39

5280

15K→20K

9.3 - 12.4 mi

Top 18%
×5stories
+106ft-86ft

Overall

4752

Males

4414

M18-39

4414

20K→Half

12.4 - 13.1 mi

Top 21%
×2stories
+19ft-37ft

Overall

5515

Males

5075

M18-39

5075

Half→25K

13.1 - 15.5 mi

Top 16%
×4stories
+66ft-88ft

Overall

4196

Males

3927

M18-39

3927

25K→30K

15.5 - 18.6 mi

Top 11%
×9stories
+181ft-148ft

Overall

3041

Males

2874

M18-39

2874

30K→20M

18.6 - 20.0 mi

Top 11%
×5stories
+64ft-50ft

Overall

2801

Males

2648

M18-39

2648

20M→21M

20.0 - 21.0 mi

Top 7%
×8stories
+106ft-24ft

Overall

1779

Males

1692

M18-39

1692

21M→35K

21.0 - 21.8 mi

Top 9%
×7stories
+17ft-86ft

Overall

2478

Males

2350

M18-39

2350

35K→23M

21.8 - 23.0 mi

Top 10%
×5stories
+23ft-63ft

Overall

2691

Males

2524

M18-39

2524

23M→24M

23.0 - 24.0 mi

Top 10%
×6stories
+12ft-82ft

Overall

2588

Males

2416

M18-39

2416

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

2958

Males

2725

M18-39

2725

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

3622

Males

3250

M18-39

3250

25.2M→Finish

25.2 - 26.2 mi

Top 21%
×2stories
+22ft-21ft

Overall

5682

Males

4709

M18-39

4709

Passing Analysis

Category:
Athletes Passed
2365
Passed By
554
Net Change
+1811
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5904
5K → 10K169229-60#5904#5964
10K → 15K17488+86#5964#5878
15K → 20K28115+266#5878#5612
20K → Half2126-5#5612#5617
Half → 25K2272+225#5617#5392
25K → 30K5362+534#5392#4858
30K → 20M2071+206#4858#4652
20M → 21M2500+250#4652#4402
21M → 35K1213+118#4402#4284
35K → 23M1368+128#4284#4156
23M → 24M1259+116#4156#4040
24M → 40K7817+61#4040#3979
40K → 25.2M2518+7#3979#3972
25.2M → Finish15136-121#3972#4093
TOTALS2365554+1811
📊

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