Boston Marathon logo
BOSTON MARATHON 2023

Mitchell Harrison

Bib: 27209•M

MA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Gender (Male)
#0 / 15176
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
29:26
Rank: #22007
Start → 5K
9:28/mi
29:26 split
10K· 6.21 mi
57:21
Rank: #21494 (+513)
5K → 10K
8:59/mi
27:55 split
15K· 9.32 mi
1:24:41
Rank: #20962 (+532)
10K → 15K
8:48/mi
27:20 split
20K· 12.43 mi
1:51:31
Rank: #20221 (+741)
15K → 20K
8:38/mi
26:50 split
Half· 13.11 mi
1:57:19
Rank: #20117 (+104)
20K → Half
8:30/mi
5:48 split
25K· 15.53 mi
2:18:22
Rank: #19658 (+459)
Half → 25K
8:41/mi
21:03 split
30K· 18.64 mi
2:45:02
Rank: #18849 (+809)
25K → 30K
8:35/mi
26:40 split
20M
2:56:23
Rank: #18436 (+413)
30K → 20M
8:21/mi
11:21 split
21M
3:05:17
Rank: #18097 (+339)
20M → 21M
8:54/mi
8:54 split
35K· 21.75 mi
3:11:43
Rank: #18028 (+69)
21M → 35K
8:36/mi
6:26 split
23M
3:22:51
Rank: #17888 (+140)
35K → 23M
8:54/mi
11:08 split
24M
3:31:54
Rank: #17882 (+6)
23M → 24M
9:03/mi
9:03 split
40K· 24.85 mi
3:40:08
Rank: #17928 (-46)
24M → 40K
9:38/mi
8:14 split
25.2M
3:43:45
Rank: #17959 (-31)
40K → 25.2M
10:29/mi
3:37 split
Finish· 26.22 mi
3:53:40
Rank: #18118 (-159)
25.2M → Finish
9:44/mi
9:55 split

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 Half⚖️ Balanced
Distance13.11 mi
Time1:57:19
Pace8:57 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:56:21
Pace8:53 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:1829:269:2829:26
9:28
-
10K
6.21 mi12:18:1357:219:1427:55
8:59
-0:29
15K
9.32 mi12:45:331:24:419:0527:20
8:48
-0:11
20K
12.43 mi13:12:231:51:318:5826:50
8:38
-0:10
Half
13.11 mi13:18:111:57:198:575:48
8:30
-0:08
25K
15.53 mi13:39:142:18:228:5421:03
8:41
+0:11
30K
18.64 mi14:05:542:45:028:5126:40
8:35
-0:06
20M
20.00 mi14:17:152:56:238:4911:21
8:21
-0:14
21M
21.00 mi14:26:093:05:178:498:54
8:54
+0:33
35K
21.75 mi14:32:353:11:438:496:26
8:36
-0:18
23M
23.00 mi14:43:433:22:518:4911:08
8:54
+0:18
24M
24.00 mi14:52:463:31:548:509:03
9:03
+0:09
40K
24.85 mi15:01:003:40:088:518:14
9:38
+0:35
25.2M
25.20 mi15:04:373:43:458:533:37
10:29
+0:51
Finish
26.22 mi15:14:323:53:408:559:55
9:44
-0:45

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

8:21 /mi

Average Pace

8:55 /mi

Slowest Pace

10:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

50:15

22% of race

Time at Steady Pace

2:12:13

57% of race

Time at Slower Pace

51:12

22% of race

Average Pace: 8:55 /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 mi11:50:1829:269:2829:26
9:28
#22007
10K
6.21 mi12:18:1357:219:1427:55
8:59
#21494
15K
9.32 mi12:45:331:24:419:0527:20
8:48
#20962
20K
12.43 mi13:12:231:51:318:5826:50
8:38
#20221
Half
13.11 mi13:18:111:57:198:575:48
8:30
#20117
25K
15.53 mi13:39:142:18:228:5421:03
8:41
#19658
30K
18.64 mi14:05:542:45:028:5126:40
8:35
#18849
20M
20.00 mi14:17:152:56:238:4911:21
8:21
#18436
21M
21.00 mi14:26:093:05:178:498:54
8:54
#18097
35K
21.75 mi14:32:353:11:438:496:26
8:36
#18028
23M
23.00 mi14:43:433:22:518:4911:08
8:54
#17888
24M
24.00 mi14:52:463:31:548:509:03
9:03
#17882
40K
24.85 mi15:01:003:40:088:518:14
9:38
#17928
25.2M
25.20 mi15:04:373:43:458:533:37
10:29
#17959
Finish
26.22 mi15:14:323:53:408:559:55
9:44
#18118
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi22007131001310019486(Top 73%)12077(Top 80%)12077(Top 229%)
10K6.21 mi3.10 mi21494+51312894+20612894+20620809(Top 78%)12628(Top 83%)12628(Top 239%)
15K9.32 mi3.11 mi20962+53212671+22312671+22319486(Top 73%)12077(Top 80%)12077(Top 229%)
20K12.43 mi3.11 mi20221+74112355+31612355+31617713(Top 67%)11344(Top 75%)11344(Top 215%)
Half13.11 mi0.68 mi20117+10412314+4112314+4117693(Top 66%)11381(Top 75%)11381(Top 215%)
25K15.53 mi2.42 mi19658+45912122+19212122+19217276(Top 65%)11101(Top 73%)11101(Top 210%)
30K18.64 mi3.11 mi18849+80911774+34811774+34814816(Top 56%)9977(Top 66%)9977(Top 189%)
20M20.00 mi1.36 mi18436+41311584+19011584+19012704(Top 48%)9013(Top 59%)9013(Top 171%)
21M21.00 mi1.00 mi18097+33911423+16111423+16112845(Top 48%)8973(Top 59%)8973(Top 170%)
35K21.75 mi0.75 mi18028+6911393+3011393+3015846(Top 60%)10237(Top 67%)10237(Top 194%)
23M23.00 mi1.25 mi17888+14011319+7411319+7415493(Top 58%)10033(Top 66%)10033(Top 190%)
24M24.00 mi1.00 mi17882+611305+1411305+1417440(Top 66%)10821(Top 71%)10821(Top 205%)
40K24.85 mi0.85 mi17928-4611314-911314-918781(Top 71%)11383(Top 75%)11383(Top 215%)
25.2M25.20 mi0.35 mi17959-3111323-911323-919025(Top 71%)11481(Top 76%)11481(Top 217%)
Finish26.22 mi1.02 mi18118-15911378-5511378-5520885(Top 78%)12365(Top 81%)12365(Top 234%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21story building
+97ft-345ft

Overall

19486

Males

12077

M18-39

12077

5K→10K

3.1 - 6.2 mi

Top 78%
×5story building
+79ft-138ft

Overall

20809

Males

12628

M18-39

12628

10K→15K

6.2 - 9.3 mi

Top 73%
×3story building
+67ft-78ft

Overall

19486

Males

12077

M18-39

12077

15K→20K

9.3 - 12.4 mi

Top 67%
×5story building
+106ft-86ft

Overall

17713

Males

11344

M18-39

11344

20K→Half

12.4 - 13.1 mi

Top 66%
×2story building
+19ft-37ft

Overall

17693

Males

11381

M18-39

11381

Half→25K

13.1 - 15.5 mi

Top 65%
×4story building
+66ft-88ft

Overall

17276

Males

11101

M18-39

11101

25K→30K

15.5 - 18.6 mi

Top 56%
×9story building
+181ft-148ft

Overall

14816

Males

9977

M18-39

9977

30K→20M

18.6 - 20.0 mi

Top 48%
×5story building
+64ft-50ft

Overall

12704

Males

9013

M18-39

9013

20M→21M

20.0 - 21.0 mi

Top 48%
×8story building
+106ft-24ft

Overall

12845

Males

8973

M18-39

8973

21M→35K

21.0 - 21.8 mi

Top 60%
×7story building
+17ft-86ft

Overall

15846

Males

10237

M18-39

10237

35K→23M

21.8 - 23.0 mi

Top 58%
×5story building
+23ft-63ft

Overall

15493

Males

10033

M18-39

10033

23M→24M

23.0 - 24.0 mi

Top 66%
×6story building
+12ft-82ft

Overall

17440

Males

10821

M18-39

10821

24M→40K

24.0 - 24.9 mi

Top 71%
×1story
+6ft-20ft

Overall

18781

Males

11383

M18-39

11383

40K→25.2M

24.9 - 25.2 mi

Top 71%
×1story
+13ft-16ft

Overall

19025

Males

11481

M18-39

11481

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2story building
+22ft-21ft

Overall

20885

Males

12365

M18-39

12365

Passing Analysis

Category:
Athletes Passed
4405
Passed By
516
Net Change
+3889
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22007
5K → 10K58976+513#22007#21494
10K → 15K55927+532#21494#20962
15K → 20K7465+741#20962#20221
20K → Half1073+104#20221#20117
Half → 25K4689+459#20117#19658
25K → 30K8112+809#19658#18849
30K → 20M4130+413#18849#18436
20M → 21M3423+339#18436#18097
21M → 35K8314+69#18097#18028
35K → 23M15818+140#18028#17888
23M → 24M6256+6#17888#17882
24M → 40K3480-46#17882#17928
40K → 25.2M1748-31#17928#17959
25.2M → Finish16175-159#17959#18118
TOTALS4405516+3889
📊

Passing Visuals

Category:
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