Boston Marathon logo
BOSTON MARATHON 2023

Jack Brisby

Bib: 2059•M

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 17%
Gender (Male)
#0 / 15176
Top 28%
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
21:19
Rank: #5224
Start → 5K
21:19 | 6:52/mi
10K· 6.21 mi
41:20
Rank: #3556 (+1668)
5K → 10K
20:01 | 6:27/mi
15K· 9.32 mi
1:01:37
Rank: #3278 (+278)
10K → 15K
20:17 | 6:32/mi
20K· 12.43 mi
1:22:03
Rank: #3098 (+180)
15K → 20K
20:26 | 6:35/mi
Half· 13.11 mi
1:26:28
Rank: #3070 (+28)
20K → Half
4:25 | 6:28/mi
25K· 15.53 mi
1:42:30
Rank: #2985 (+85)
Half → 25K
16:02 | 6:37/mi
30K· 18.64 mi
2:04:12
Rank: #3142 (-157)
25K → 30K
21:42 | 6:59/mi
20M
2:14:01
Rank: #3294 (-152)
30K → 20M
9:49 | 7:13/mi
21M
2:21:58
Rank: #3542 (-248)
20M → 21M
7:57 | 7:57/mi
35K· 21.75 mi
2:27:17
Rank: #3643 (-101)
21M → 35K
5:19 | 7:06/mi
23M
2:36:42
Rank: #3867 (-224)
35K → 23M
9:25 | 7:31/mi
24M
2:44:01
Rank: #4036 (-169)
23M → 24M
7:19 | 7:19/mi
40K· 24.85 mi
2:50:50
Rank: #4303 (-267)
24M → 40K
6:49 | 7:58/mi
25.2M
2:53:52
Rank: #4409 (-106)
40K → 25.2M
3:02 | 8:48/mi
Finish· 26.22 mi
3:01:54
Rank: #4601 (-192)
25.2M → Finish
8:02 | 7:53/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
Time1:26:28
Pace6:36 /mi
2nd Half
Distance13.11 mi
Time1:35:26
Pace7:17 /mi
📊Positive Split: 10.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:5621:196:5221:19
6:52
-
10K
6.21 mi10:41:5741:206:3920:01
6:27
-0:25
15K
9.32 mi11:02:141:01:376:3720:17
6:32
+0:05
20K
12.43 mi11:22:401:22:036:3620:26
6:35
+0:03
Half
13.11 mi11:27:051:26:286:364:25
6:28
-0:07
25K
15.53 mi11:43:071:42:306:3616:02
6:37
+0:09
30K
18.64 mi12:04:492:04:126:4021:42
6:59
+0:22
20M
20.00 mi12:14:382:14:016:429:49
7:13
+0:14
21M
21.00 mi12:22:352:21:586:467:57
7:57
+0:44
35K
21.75 mi12:27:542:27:176:465:19
7:06
-0:51
23M
23.00 mi12:37:192:36:426:499:25
7:31
+0:25
24M
24.00 mi12:44:382:44:016:507:19
7:19
-0:12
40K
24.85 mi12:51:272:50:506:526:49
7:58
+0:39
25.2M
25.20 mi12:54:292:53:526:543:02
8:48
+0:50
Finish
26.22 mi13:02:313:01:546:578:02
7:53
-0:55

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

6:27 /mi

Average Pace

6:57 /mi

Slowest Pace

8:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:21:11

45% of race

Time at Steady Pace

1:05:28

36% of race

Time at Slower Pace

35:15

19% of race

Average Pace: 6:56 /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 mi10:21:5621:196:5221:19
6:52
#5224
10K
6.21 mi10:41:5741:206:3920:01
6:27
#3556
15K
9.32 mi11:02:141:01:376:3720:17
6:32
#3278
20K
12.43 mi11:22:401:22:036:3620:26
6:35
#3098
Half
13.11 mi11:27:051:26:286:364:25
6:28
#3070
25K
15.53 mi11:43:071:42:306:3616:02
6:37
#2985
30K
18.64 mi12:04:492:04:126:4021:42
6:59
#3142
20M
20.00 mi12:14:382:14:016:429:49
7:13
#3294
21M
21.00 mi12:22:352:21:586:467:57
7:57
#3542
35K
21.75 mi12:27:542:27:176:465:19
7:06
#3643
23M
23.00 mi12:37:192:36:426:499:25
7:31
#3867
24M
24.00 mi12:44:382:44:016:507:19
7:19
#4036
40K
24.85 mi12:51:272:50:506:526:49
7:58
#4303
25.2M
25.20 mi12:54:292:53:526:543:02
8:48
#4409
Finish
26.22 mi13:02:313:01:546:578:02
7:53
#4601
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5224483848382827(Top 11%)2703(Top 18%)2703(Top 51%)
10K6.21 mi3.10 mi3556+16683357+14813357+14812463(Top 9%)2356(Top 16%)2356(Top 45%)
15K9.32 mi3.11 mi3278+2783116+2413116+2412827(Top 11%)2703(Top 18%)2703(Top 51%)
20K12.43 mi3.11 mi3098+1802954+1622954+1622712(Top 10%)2594(Top 17%)2594(Top 49%)
Half13.11 mi0.68 mi3070+282928+262928+262688(Top 10%)2582(Top 17%)2582(Top 49%)
25K15.53 mi2.42 mi2985+852852+762852+762792(Top 10%)2670(Top 18%)2670(Top 51%)
30K18.64 mi3.11 mi3142-1572993-1412993-1414253(Top 16%)3963(Top 26%)3963(Top 75%)
20M20.00 mi1.36 mi3294-1523122-1293122-1295213(Top 20%)4705(Top 31%)4705(Top 89%)
21M21.00 mi1.00 mi3542-2483355-2333355-2336988(Top 26%)5844(Top 39%)5844(Top 111%)
35K21.75 mi0.75 mi3643-1013441-863441-865893(Top 22%)5146(Top 34%)5146(Top 97%)
23M23.00 mi1.25 mi3867-2243638-1973638-1976510(Top 24%)5506(Top 36%)5506(Top 104%)
24M24.00 mi1.00 mi4036-1693781-1433781-1436438(Top 24%)5368(Top 35%)5368(Top 102%)
40K24.85 mi0.85 mi4303-2674020-2394020-2399805(Top 37%)7221(Top 48%)7221(Top 137%)
25.2M25.20 mi0.35 mi4409-1064113-934113-9311175(Top 42%)7838(Top 52%)7838(Top 148%)
Finish26.22 mi1.02 mi4601-1924270-1574270-15711231(Top 42%)7888(Top 52%)7888(Top 149%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 11%
×21stories
+97ft-345ft

Overall

2827

Males

2703

M18-39

2703

5K→10K

3.1 - 6.2 mi

Top 9%
×5stories
+79ft-138ft

Overall

2463

Males

2356

M18-39

2356

10K→15K

6.2 - 9.3 mi

Top 11%
×3stories
+67ft-78ft

Overall

2827

Males

2703

M18-39

2703

15K→20K

9.3 - 12.4 mi

Top 10%
×5stories
+106ft-86ft

Overall

2712

Males

2594

M18-39

2594

20K→Half

12.4 - 13.1 mi

Top 10%
×2stories
+19ft-37ft

Overall

2688

Males

2582

M18-39

2582

Half→25K

13.1 - 15.5 mi

Top 10%
×4stories
+66ft-88ft

Overall

2792

Males

2670

M18-39

2670

25K→30K

15.5 - 18.6 mi

Top 16%
×9stories
+181ft-148ft

Overall

4253

Males

3963

M18-39

3963

30K→20M

18.6 - 20.0 mi

Top 20%
×5stories
+64ft-50ft

Overall

5213

Males

4705

M18-39

4705

20M→21M

20.0 - 21.0 mi

Top 26%
×8stories
+106ft-24ft

Overall

6988

Males

5844

M18-39

5844

21M→35K

21.0 - 21.8 mi

Top 22%
×7stories
+17ft-86ft

Overall

5893

Males

5146

M18-39

5146

35K→23M

21.8 - 23.0 mi

Top 24%
×5stories
+23ft-63ft

Overall

6510

Males

5506

M18-39

5506

23M→24M

23.0 - 24.0 mi

Top 24%
×6stories
+12ft-82ft

Overall

6438

Males

5368

M18-39

5368

24M→40K

24.0 - 24.9 mi

Top 37%
×1story
+6ft-20ft

Overall

9805

Males

7221

M18-39

7221

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

11175

Males

7838

M18-39

7838

25.2M→Finish

25.2 - 26.2 mi

Top 42%
×2stories
+22ft-21ft

Overall

11231

Males

7888

M18-39

7888

Passing Analysis

Category:
Athletes Passed
2476
Passed By
1853
Net Change
+623
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5224
5K → 10K16691+1668#5224#3556
10K → 15K29820+278#3556#3278
15K → 20K20020+180#3278#3098
20K → Half313+28#3098#3070
Half → 25K10621+85#3070#2985
25K → 30K52209-157#2985#3142
30K → 20M26178-152#3142#3294
20M → 21M9257-248#3294#3542
21M → 35K13114-101#3542#3643
35K → 23M22246-224#3643#3867
23M → 24M20189-169#3867#4036
24M → 40K10277-267#4036#4303
40K → 25.2M9115-106#4303#4409
25.2M → Finish11203-192#4409#4601
TOTALS24761853+623
📊

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