Boston Marathon logo
BOSTON MARATHON 2023

Steven Johnson

Bib: 8344•M

KY

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 44%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 49%
Division (M40-44)
#0 / 2241
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:56
Rank: #8701
Start → 5K
22:56 | 7:23/mi
10K· 6.21 mi
45:24
Rank: #8497 (+204)
5K → 10K
22:28 | 7:14/mi
15K· 9.32 mi
1:07:43
Rank: #8209 (+288)
10K → 15K
22:19 | 7:11/mi
20K· 12.43 mi
1:30:12
Rank: #7961 (+248)
15K → 20K
22:29 | 7:14/mi
Half· 13.11 mi
1:35:05
Rank: #7933 (+28)
20K → Half
4:53 | 7:09/mi
25K· 15.53 mi
1:53:21
Rank: #8049 (-116)
Half → 25K
18:16 | 7:32/mi
30K· 18.64 mi
2:20:14
Rank: #9340 (-1291)
25K → 30K
26:53 | 8:39/mi
20M
2:32:42
Rank: #10033 (-693)
30K → 20M
12:28 | 9:10/mi
21M
2:42:44
Rank: #10615 (-582)
20M → 21M
10:02 | 10:02/mi
35K· 21.75 mi
2:48:59
Rank: #10745 (-130)
21M → 35K
6:15 | 8:21/mi
23M
3:00:21
Rank: #11140 (-395)
35K → 23M
11:22 | 9:05/mi
24M
3:09:04
Rank: #11392 (-252)
23M → 24M
8:43 | 8:43/mi
40K· 24.85 mi
3:16:46
Rank: #11621 (-229)
24M → 40K
7:42 | 9:00/mi
25.2M
3:19:58
Rank: #11664 (-43)
40K → 25.2M
3:12 | 9:17/mi
Finish· 26.22 mi
3:28:36
Rank: #11825 (-161)
25.2M → Finish
8:38 | 8:28/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
Time1:35:05
Pace7:15 /mi
2nd Half
Distance13.11 mi
Time1:53:31
Pace8:40 /mi
📊Positive Split: 19.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:0822:567:2322:56
7:23
-
10K
6.21 mi11:10:3645:247:1822:28
7:14
-0:09
15K
9.32 mi11:32:551:07:437:1622:19
7:11
-0:03
20K
12.43 mi11:55:241:30:127:1522:29
7:14
+0:03
Half
13.11 mi12:00:171:35:057:154:53
7:09
-0:05
25K
15.53 mi12:18:331:53:217:1818:16
7:32
+0:23
30K
18.64 mi12:45:262:20:147:3126:53
8:39
+1:07
20M
20.00 mi12:57:542:32:427:3812:28
9:10
+0:31
21M
21.00 mi13:07:562:42:447:4510:02
10:02
+0:52
35K
21.75 mi13:14:112:48:597:466:15
8:21
-1:41
23M
23.00 mi13:25:333:00:217:5011:22
9:05
+0:44
24M
24.00 mi13:34:163:09:047:538:43
8:43
-0:22
40K
24.85 mi13:41:583:16:467:557:42
9:00
+0:17
25.2M
25.20 mi13:45:103:19:587:563:12
9:17
+0:17
Finish
26.22 mi13:53:483:28:367:588:38
8:28
-0:49

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

7:09 /mi

Average Pace

7:58 /mi

Slowest Pace

10:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:53:21

54% of race

Time at Steady Pace

50:29

24% of race

Time at Slower Pace

44:46

21% of race

Average Pace: 7:57 /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 mi10:48:0822:567:2322:56
7:23
#8701
10K
6.21 mi11:10:3645:247:1822:28
7:14
#8497
15K
9.32 mi11:32:551:07:437:1622:19
7:11
#8209
20K
12.43 mi11:55:241:30:127:1522:29
7:14
#7961
Half
13.11 mi12:00:171:35:057:154:53
7:09
#7933
25K
15.53 mi12:18:331:53:217:1818:16
7:32
#8049
30K
18.64 mi12:45:262:20:147:3126:53
8:39
#9340
20M
20.00 mi12:57:542:32:427:3812:28
9:10
#10033
21M
21.00 mi13:07:562:42:447:4510:02
10:02
#10615
35K
21.75 mi13:14:112:48:597:466:15
8:21
#10745
23M
23.00 mi13:25:333:00:217:5011:22
9:05
#11140
24M
24.00 mi13:34:163:09:047:538:43
8:43
#11392
40K
24.85 mi13:41:583:16:467:557:42
9:00
#11621
25.2M
25.20 mi13:45:103:19:587:563:12
9:17
#11664
Finish
26.22 mi13:53:483:28:367:588:38
8:28
#11825
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi8701741174117711(Top 29%)6723(Top 44%)6723(Top 300%)
10K6.21 mi3.10 mi8497+2047268+1437268+1438360(Top 31%)7171(Top 47%)7171(Top 320%)
15K9.32 mi3.11 mi8209+2887085+1837085+1837711(Top 29%)6723(Top 44%)6723(Top 300%)
20K12.43 mi3.11 mi7961+2486911+1746911+1747357(Top 28%)6460(Top 43%)6460(Top 288%)
Half13.11 mi0.68 mi7933+286888+236888+237643(Top 29%)6651(Top 44%)6651(Top 297%)
25K15.53 mi2.42 mi8049-1166947-596947-599054(Top 34%)7463(Top 49%)7463(Top 333%)
30K18.64 mi3.11 mi9340-12917702-7557702-75515252(Top 57%)10145(Top 67%)10145(Top 453%)
20M20.00 mi1.36 mi10033-6938085-3838085-38317456(Top 66%)11002(Top 72%)11002(Top 491%)
21M21.00 mi1.00 mi10615-5828342-2578342-25718177(Top 68%)11288(Top 74%)11288(Top 504%)
35K21.75 mi0.75 mi10745-1308380-388380-3814509(Top 55%)9630(Top 63%)9630(Top 430%)
23M23.00 mi1.25 mi11140-3958555-1758555-17516469(Top 62%)10437(Top 69%)10437(Top 466%)
24M24.00 mi1.00 mi11392-2528645-908645-9015804(Top 59%)10070(Top 66%)10070(Top 449%)
40K24.85 mi0.85 mi11621-2298731-868731-8616228(Top 61%)10211(Top 67%)10211(Top 456%)
25.2M25.20 mi0.35 mi11664-438737-68737-614205(Top 53%)9299(Top 61%)9299(Top 415%)
Finish26.22 mi1.02 mi11825-1618784-478784-4715300(Top 57%)9842(Top 65%)9842(Top 439%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 29%
×21stories
+97ft-345ft

Overall

7711

Males

6723

M40-44

6723

5K→10K

3.1 - 6.2 mi

Top 31%
×5stories
+79ft-138ft

Overall

8360

Males

7171

M40-44

7171

10K→15K

6.2 - 9.3 mi

Top 29%
×3stories
+67ft-78ft

Overall

7711

Males

6723

M40-44

6723

15K→20K

9.3 - 12.4 mi

Top 28%
×5stories
+106ft-86ft

Overall

7357

Males

6460

M40-44

6460

20K→Half

12.4 - 13.1 mi

Top 29%
×2stories
+19ft-37ft

Overall

7643

Males

6651

M40-44

6651

Half→25K

13.1 - 15.5 mi

Top 34%
×4stories
+66ft-88ft

Overall

9054

Males

7463

M40-44

7463

25K→30K

15.5 - 18.6 mi

Top 57%
×9stories
+181ft-148ft

Overall

15252

Males

10145

M40-44

10145

30K→20M

18.6 - 20.0 mi

Top 66%
×5stories
+64ft-50ft

Overall

17456

Males

11002

M40-44

11002

20M→21M

20.0 - 21.0 mi

Top 68%
×8stories
+106ft-24ft

Overall

18177

Males

11288

M40-44

11288

21M→35K

21.0 - 21.8 mi

Top 55%
×7stories
+17ft-86ft

Overall

14509

Males

9630

M40-44

9630

35K→23M

21.8 - 23.0 mi

Top 62%
×5stories
+23ft-63ft

Overall

16469

Males

10437

M40-44

10437

23M→24M

23.0 - 24.0 mi

Top 59%
×6stories
+12ft-82ft

Overall

15804

Males

10070

M40-44

10070

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

16228

Males

10211

M40-44

10211

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

14205

Males

9299

M40-44

9299

25.2M→Finish

25.2 - 26.2 mi

Top 57%
×2stories
+22ft-21ft

Overall

15300

Males

9842

M40-44

9842

Passing Analysis

Category:
Athletes Passed
1225
Passed By
4348
Net Change
-3124
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8701
5K → 10K356152+204#8701#8497
10K → 15K32941+288#8497#8209
15K → 20K26921+248#8209#7961
20K → Half357+28#7961#7933
Half → 25K60176-116#7933#8049
25K → 30K171308-1291#8049#9340
30K → 20M9701-693#9340#10033
20M → 21M7589-582#10033#10615
21M → 35K29159-130#10615#10745
35K → 23M19414-395#10745#11140
23M → 24M19271-252#11140#11392
24M → 40K20249-229#11392#11621
40K → 25.2M1861-43#11621#11664
25.2M → Finish38199-161#11664#11825
TOTALS12254348-3124
📊

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