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BOSTON MARATHON 2023

Zackary Johnston

Bib: 1718•M

PA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 8%
Gender (Male)
#0 / 15176
Top 14%
Division (M18-39)
#0 / 5285
Top 32%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:23
Rank: #1244
Start → 5K
19:23 | 6:14/mi
10K· 6.21 mi
38:13
Rank: #1087 (+157)
5K → 10K
18:50 | 6:04/mi
15K· 9.32 mi
56:56
Rank: #989 (+98)
10K → 15K
18:43 | 6:01/mi
20K· 12.43 mi
1:15:42
Rank: #886 (+103)
15K → 20K
18:46 | 6:02/mi
Half· 13.11 mi
1:19:45
Rank: #865 (+21)
20K → Half
4:03 | 5:56/mi
25K· 15.53 mi
1:34:48
Rank: #881 (-16)
Half → 25K
15:03 | 6:12/mi
30K· 18.64 mi
1:54:35
Rank: #884 (-3)
25K → 30K
19:47 | 6:22/mi
20M
2:03:39
Rank: #933 (-49)
30K → 20M
9:04 | 6:40/mi
21M
2:10:43
Rank: #970 (-37)
20M → 21M
7:04 | 7:04/mi
35K· 21.75 mi
2:15:42
Rank: #1006 (-36)
21M → 35K
4:59 | 6:40/mi
23M
2:25:03
Rank: #1169 (-163)
35K → 23M
9:21 | 7:28/mi
24M
2:33:24
Rank: #1469 (-300)
23M → 24M
8:21 | 8:21/mi
40K· 24.85 mi
2:40:28
Rank: #1695 (-226)
24M → 40K
7:04 | 8:16/mi
25.2M
2:43:51
Rank: #1865 (-170)
40K → 25.2M
3:23 | 9:49/mi
Finish· 26.22 mi
2:52:48
Rank: #2243 (-378)
25.2M → Finish
8:57 | 8:47/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:19:45
Pace6:05 /mi
2nd Half
Distance13.11 mi
Time1:33:03
Pace7:06 /mi
📊Positive Split: 16.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:4519:236:1419:23
6:14
-
10K
6.21 mi10:38:3538:136:0918:50
6:04
-0:10
15K
9.32 mi10:57:1856:566:0718:43
6:01
-0:03
20K
12.43 mi11:16:041:15:426:0518:46
6:02
+0:01
Half
13.11 mi11:20:071:19:456:054:03
5:56
-0:06
25K
15.53 mi11:35:101:34:486:0615:03
6:12
+0:16
30K
18.64 mi11:54:571:54:356:0919:47
6:22
+0:10
20M
20.00 mi12:04:012:03:396:119:04
6:40
+0:18
21M
21.00 mi12:11:052:10:436:137:04
7:04
+0:24
35K
21.75 mi12:16:042:15:426:144:59
6:40
-0:24
23M
23.00 mi12:25:252:25:036:189:21
7:28
+0:48
24M
24.00 mi12:33:462:33:246:248:21
8:21
+0:53
40K
24.85 mi12:40:502:40:286:277:04
8:16
-0:05
25.2M
25.20 mi12:44:132:43:516:303:23
9:49
+1:33
Finish
26.22 mi12:53:102:52:486:368:57
8:47
-1:02

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

5:56 /mi

Average Pace

6:36 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:00:22

35% of race

Time at Steady Pace

1:15:20

44% of race

Time at Slower Pace

37:06

21% of race

Average Pace: 6:35 /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 mi10:19:4519:236:1419:23
6:14
#1244
10K
6.21 mi10:38:3538:136:0918:50
6:04
#1087
15K
9.32 mi10:57:1856:566:0718:43
6:01
#989
20K
12.43 mi11:16:041:15:426:0518:46
6:02
#886
Half
13.11 mi11:20:071:19:456:054:03
5:56
#865
25K
15.53 mi11:35:101:34:486:0615:03
6:12
#881
30K
18.64 mi11:54:571:54:356:0919:47
6:22
#884
20M
20.00 mi12:04:012:03:396:119:04
6:40
#933
21M
21.00 mi12:11:052:10:436:137:04
7:04
#970
35K
21.75 mi12:16:042:15:426:144:59
6:40
#1006
23M
23.00 mi12:25:252:25:036:189:21
7:28
#1169
24M
24.00 mi12:33:462:33:246:248:21
8:21
#1469
40K
24.85 mi12:40:502:40:286:277:04
8:16
#1695
25.2M
25.20 mi12:44:132:43:516:303:23
9:49
#1865
Finish
26.22 mi12:53:102:52:486:368:57
8:47
#2243
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi124411801180773(Top 3%)728(Top 5%)728(Top 14%)
10K6.21 mi3.10 mi1087+1571030+1501030+150973(Top 4%)923(Top 6%)923(Top 17%)
15K9.32 mi3.11 mi989+98937+93937+93773(Top 3%)728(Top 5%)728(Top 14%)
20K12.43 mi3.11 mi886+103838+99838+99642(Top 2%)601(Top 4%)601(Top 11%)
Half13.11 mi0.68 mi865+21818+20818+20642(Top 2%)604(Top 4%)604(Top 11%)
25K15.53 mi2.42 mi881-16834-16834-161026(Top 4%)977(Top 6%)977(Top 18%)
30K18.64 mi3.11 mi884-3836-2836-21131(Top 4%)1078(Top 7%)1078(Top 20%)
20M20.00 mi1.36 mi933-49885-49885-492156(Top 8%)2051(Top 14%)2051(Top 39%)
21M21.00 mi1.00 mi970-37923-38923-382451(Top 9%)2314(Top 15%)2314(Top 44%)
35K21.75 mi0.75 mi1006-36956-33956-333296(Top 12%)3066(Top 20%)3066(Top 58%)
23M23.00 mi1.25 mi1169-1631116-1601116-1606212(Top 23%)5314(Top 35%)5314(Top 101%)
24M24.00 mi1.00 mi1469-3001401-2851401-28513499(Top 51%)9075(Top 60%)9075(Top 172%)
40K24.85 mi0.85 mi1695-2261620-2191620-21911734(Top 44%)8175(Top 54%)8175(Top 155%)
25.2M25.20 mi0.35 mi1865-1701784-1641784-16416475(Top 62%)10287(Top 68%)10287(Top 195%)
Finish26.22 mi1.02 mi2243-3782148-3642148-36416899(Top 63%)10550(Top 70%)10550(Top 200%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 3%
×21stories
+97ft-345ft

Overall

773

Males

728

M18-39

728

5K→10K

3.1 - 6.2 mi

Top 4%
×5stories
+79ft-138ft

Overall

973

Males

923

M18-39

923

10K→15K

6.2 - 9.3 mi

Top 3%
×3stories
+67ft-78ft

Overall

773

Males

728

M18-39

728

15K→20K

9.3 - 12.4 mi

Top 2%
×5stories
+106ft-86ft

Overall

642

Males

601

M18-39

601

20K→Half

12.4 - 13.1 mi

Top 2%
×2stories
+19ft-37ft

Overall

642

Males

604

M18-39

604

Half→25K

13.1 - 15.5 mi

Top 4%
×4stories
+66ft-88ft

Overall

1026

Males

977

M18-39

977

25K→30K

15.5 - 18.6 mi

Top 4%
×9stories
+181ft-148ft

Overall

1131

Males

1078

M18-39

1078

30K→20M

18.6 - 20.0 mi

Top 8%
×5stories
+64ft-50ft

Overall

2156

Males

2051

M18-39

2051

20M→21M

20.0 - 21.0 mi

Top 9%
×8stories
+106ft-24ft

Overall

2451

Males

2314

M18-39

2314

21M→35K

21.0 - 21.8 mi

Top 12%
×7stories
+17ft-86ft

Overall

3296

Males

3066

M18-39

3066

35K→23M

21.8 - 23.0 mi

Top 23%
×5stories
+23ft-63ft

Overall

6212

Males

5314

M18-39

5314

23M→24M

23.0 - 24.0 mi

Top 51%
×6stories
+12ft-82ft

Overall

13499

Males

9075

M18-39

9075

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

11734

Males

8175

M18-39

8175

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

16475

Males

10287

M18-39

10287

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2stories
+22ft-21ft

Overall

16899

Males

10550

M18-39

10550

Passing Analysis

Category:
Athletes Passed
457
Passed By
1456
Net Change
-999
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1244
5K → 10K1669+157#1244#1087
10K → 15K1046+98#1087#989
15K → 20K1030+103#989#886
20K → Half210+21#886#865
Half → 25K2036-16#865#881
25K → 30K2629-3#881#884
30K → 20M453-49#884#933
20M → 21M643-37#933#970
21M → 35K440-36#970#1006
35K → 23M1164-163#1006#1169
23M → 24M1301-300#1169#1469
24M → 40K1227-226#1469#1695
40K → 25.2M0170-170#1695#1865
25.2M → Finish0378-378#1865#2243
TOTALS4571456-999
📊

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