Boston Marathon logo
BOSTON MARATHON 2024

Zachary Johnson

Bib: 2848•M

UT

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 25550
Top 18%
Gender (Male)
#0 / 14578
Top 28%
Division (M18-39)
#0 / 4849
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:53
Rank: #1185
Start → 5K
18:53 | 6:05/mi
10K· 6.21 mi
38:48
Rank: #1728 (-543)
5K → 10K
19:55 | 6:25/mi
15K· 9.32 mi
59:17
Rank: #2181 (-453)
10K → 15K
20:29 | 6:36/mi
20K· 12.43 mi
1:20:34
Rank: #2587 (-406)
15K → 20K
21:17 | 6:51/mi
Half· 13.11 mi
1:25:11
Rank: #2666 (-79)
20K → Half
4:37 | 6:46/mi
25K· 15.53 mi
1:43:02
Rank: #3190 (-524)
Half → 25K
17:51 | 7:22/mi
30K· 18.64 mi
2:06:53
Rank: #3749 (-559)
25K → 30K
23:51 | 7:41/mi
20M
2:17:42
Rank: #3989 (-240)
30K → 20M
10:49 | 7:58/mi
21M
2:26:52
Rank: #4277 (-288)
20M → 21M
9:10 | 9:10/mi
35K· 21.75 mi
2:33:19
Rank: #4467 (-190)
21M → 35K
6:27 | 8:37/mi
23M
2:43:42
Rank: #4555 (-88)
35K → 23M
10:23 | 8:18/mi
24M
2:51:55
Rank: #4612 (-57)
23M → 24M
8:13 | 8:13/mi
40K· 24.85 mi
2:59:37
Rank: #4745 (-133)
24M → 40K
7:42 | 9:00/mi
25.2M
3:02:35
Rank: #4697 (+48)
40K → 25.2M
2:58 | 8:36/mi
Finish· 26.22 mi
3:09:38
Rank: #4560 (+137)
25.2M → Finish
7:03 | 6:55/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:25:11
Pace6:30 /mi
2nd Half
Distance13.11 mi
Time1:44:27
Pace7:58 /mi
📊Positive Split: 22.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:1818:536:0518:53
6:05
-
10K
6.21 mi10:40:1338:486:1519:55
6:25
+0:20
15K
9.32 mi11:00:4259:176:2220:29
6:36
+0:11
20K
12.43 mi11:21:591:20:346:2921:17
6:51
+0:15
Half
13.11 mi11:26:361:25:116:304:37
6:46
-0:05
25K
15.53 mi11:44:271:43:026:3817:51
7:22
+0:36
30K
18.64 mi12:08:182:06:536:4823:51
7:41
+0:19
20M
20.00 mi12:19:072:17:426:5310:49
7:58
+0:17
21M
21.00 mi12:28:172:26:527:009:10
9:10
+1:12
35K
21.75 mi12:34:442:33:197:036:27
8:37
-0:33
23M
23.00 mi12:45:072:43:427:0710:23
8:18
-0:19
24M
24.00 mi12:53:202:51:557:108:13
8:13
-0:05
40K
24.85 mi13:01:022:59:377:147:42
9:00
+0:47
25.2M
25.20 mi13:04:003:02:357:152:58
8:36
-0:24
Finish
26.22 mi13:11:033:09:387:147:03
6:55
-1:41

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

6:05 /mi

Average Pace

7:14 /mi

Slowest Pace

9:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:32:14

49% of race

Time at Steady Pace

52:31

28% of race

Time at Slower Pace

44:53

24% of race

Average Pace: 7:14 /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 mi10:20:1818:536:0518:53
6:05
#1185
10K
6.21 mi10:40:1338:486:1519:55
6:25
#1728
15K
9.32 mi11:00:4259:176:2220:29
6:36
#2181
20K
12.43 mi11:21:591:20:346:2921:17
6:51
#2587
Half
13.11 mi11:26:361:25:116:304:37
6:46
#2666
25K
15.53 mi11:44:271:43:026:3817:51
7:22
#3190
30K
18.64 mi12:08:182:06:536:4823:51
7:41
#3749
20M
20.00 mi12:19:072:17:426:5310:49
7:58
#3989
21M
21.00 mi12:28:172:26:527:009:10
9:10
#4277
35K
21.75 mi12:34:442:33:197:036:27
8:37
#4467
23M
23.00 mi12:45:072:43:427:0710:23
8:18
#4555
24M
24.00 mi12:53:202:51:557:108:13
8:13
#4612
40K
24.85 mi13:01:022:59:377:147:42
9:00
#4745
25.2M
25.20 mi13:04:003:02:357:152:58
8:36
#4697
Finish
26.22 mi13:11:033:09:387:147:03
6:55
#4560
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1185114611463229(Top 13%)3075(Top 21%)3075(Top 63%)
10K6.21 mi3.10 mi1728-5431671-5251671-5252479(Top 10%)2384(Top 16%)2384(Top 49%)
15K9.32 mi3.11 mi2181-4532109-4382109-4383229(Top 13%)3075(Top 21%)3075(Top 63%)
20K12.43 mi3.11 mi2587-4062482-3732482-3734257(Top 17%)3956(Top 27%)3956(Top 82%)
Half13.11 mi0.68 mi2666-792553-712553-714271(Top 17%)3975(Top 27%)3975(Top 82%)
25K15.53 mi2.42 mi3190-5243030-4773030-4776166(Top 24%)5281(Top 36%)5281(Top 109%)
30K18.64 mi3.11 mi3749-5593517-4873517-4875996(Top 23%)5009(Top 34%)5009(Top 103%)
20M20.00 mi1.36 mi3989-2403716-1993716-1996500(Top 25%)5146(Top 35%)5146(Top 106%)
21M21.00 mi1.00 mi4277-2883940-2243940-2249317(Top 36%)6428(Top 44%)6428(Top 133%)
35K21.75 mi0.75 mi4467-1904086-1464086-14611363(Top 44%)7370(Top 51%)7370(Top 152%)
23M23.00 mi1.25 mi4555-884131-454131-457269(Top 28%)5209(Top 36%)5209(Top 107%)
24M24.00 mi1.00 mi4612-574141-104141-107814(Top 31%)5396(Top 37%)5396(Top 111%)
40K24.85 mi0.85 mi4745-1334220-794220-7910853(Top 42%)6825(Top 47%)6825(Top 141%)
25.2M25.20 mi0.35 mi4697+484169+514169+514825(Top 19%)3631(Top 25%)3631(Top 75%)
Finish26.22 mi1.02 mi4560+1374043+1264043+1262798(Top 11%)2373(Top 16%)2373(Top 49%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 13%
×21stories
+97ft-345ft

Overall

3229

Males

3075

M18-39

3075

5K→10K

3.1 - 6.2 mi

Top 10%
×5stories
+79ft-138ft

Overall

2479

Males

2384

M18-39

2384

10K→15K

6.2 - 9.3 mi

Top 13%
×3stories
+67ft-78ft

Overall

3229

Males

3075

M18-39

3075

15K→20K

9.3 - 12.4 mi

Top 17%
×5stories
+106ft-86ft

Overall

4257

Males

3956

M18-39

3956

20K→Half

12.4 - 13.1 mi

Top 17%
×2stories
+19ft-37ft

Overall

4271

Males

3975

M18-39

3975

Half→25K

13.1 - 15.5 mi

Top 24%
×4stories
+66ft-88ft

Overall

6166

Males

5281

M18-39

5281

25K→30K

15.5 - 18.6 mi

Top 23%
×9stories
+181ft-148ft

Overall

5996

Males

5009

M18-39

5009

30K→20M

18.6 - 20.0 mi

Top 25%
×5stories
+64ft-50ft

Overall

6500

Males

5146

M18-39

5146

20M→21M

20.0 - 21.0 mi

Top 36%
×8stories
+106ft-24ft

Overall

9317

Males

6428

M18-39

6428

21M→35K

21.0 - 21.8 mi

Top 44%
×7stories
+17ft-86ft

Overall

11363

Males

7370

M18-39

7370

35K→23M

21.8 - 23.0 mi

Top 28%
×5stories
+23ft-63ft

Overall

7269

Males

5209

M18-39

5209

23M→24M

23.0 - 24.0 mi

Top 31%
×6stories
+12ft-82ft

Overall

7814

Males

5396

M18-39

5396

24M→40K

24.0 - 24.9 mi

Top 42%
×1story
+6ft-20ft

Overall

10853

Males

6825

M18-39

6825

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

4825

Males

3631

M18-39

3631

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2stories
+22ft-21ft

Overall

2798

Males

2373

M18-39

2373

Passing Analysis

Category:
Athletes Passed
577
Passed By
3952
Net Change
-3375
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1185
5K → 10K3546-543#1185#1728
10K → 15K11464-453#1728#2181
15K → 20K27433-406#2181#2587
20K → Half483-79#2587#2666
Half → 25K22546-524#2666#3190
25K → 30K60619-559#3190#3749
30K → 20M55295-240#3749#3989
20M → 21M29317-288#3989#4277
21M → 35K18208-190#4277#4467
35K → 23M61149-88#4467#4555
23M → 24M54111-57#4555#4612
24M → 40K33166-133#4612#4745
40K → 25.2M579+48#4745#4697
25.2M → Finish1436+137#4697#4560
TOTALS5773952-3375
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing