Boston Marathon logo
BOSTON MARATHON 2023

John Neiman

Bib: 3445•M

AL

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 7%
Gender (Male)
#0 / 15176
Top 11%
Masters (Masters Men)
#0 / 9891
Top 3%
Division (M45-49)
#0 / 2252
Top 3%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:24
Rank: #2636
Start → 5K
20:24 | 6:34/mi
10K· 6.21 mi
40:28
Rank: #2581 (+55)
5K → 10K
20:04 | 6:28/mi
15K· 9.32 mi
1:00:35
Rank: #2526 (+55)
10K → 15K
20:07 | 6:28/mi
20K· 12.43 mi
1:20:48
Rank: #2458 (+68)
15K → 20K
20:13 | 6:30/mi
Half· 13.11 mi
1:25:12
Rank: #2453 (+5)
20K → Half
4:24 | 6:27/mi
25K· 15.53 mi
1:40:59
Rank: #2415 (+38)
Half → 25K
15:47 | 6:31/mi
30K· 18.64 mi
2:01:16
Rank: #2257 (+158)
25K → 30K
20:17 | 6:32/mi
20M
2:10:10
Rank: #2185 (+72)
30K → 20M
8:54 | 6:33/mi
21M
2:16:53
Rank: #2092 (+93)
20M → 21M
6:43 | 6:43/mi
35K· 21.75 mi
2:21:33
Rank: #2051 (+41)
21M → 35K
4:40 | 6:14/mi
23M
2:29:37
Rank: #1959 (+92)
35K → 23M
8:04 | 6:27/mi
24M
2:35:53
Rank: #1905 (+54)
23M → 24M
6:16 | 6:16/mi
40K· 24.85 mi
2:41:20
Rank: #1859 (+46)
24M → 40K
5:27 | 6:22/mi
25.2M
2:43:43
Rank: #1841 (+18)
40K → 25.2M
2:23 | 6:55/mi
Finish· 26.22 mi
2:50:03
Rank: #1795 (+46)
25.2M → Finish
6:20 | 6:13/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 Half⚖️ Balanced
Distance13.11 mi
Time1:25:12
Pace6:30 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:24:51
Pace6:28 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:5420:246:3420:24
6:34
-
10K
6.21 mi10:41:5840:286:3120:04
6:28
-0:06
15K
9.32 mi11:02:051:00:356:3020:07
6:28
0:00
20K
12.43 mi11:22:181:20:486:3020:13
6:30
+0:02
Half
13.11 mi11:26:421:25:126:304:24
6:27
-0:03
25K
15.53 mi11:42:291:40:596:3015:47
6:31
+0:04
30K
18.64 mi12:02:462:01:166:3020:17
6:32
+0:01
20M
20.00 mi12:11:402:10:106:308:54
6:33
+0:01
21M
21.00 mi12:18:232:16:536:316:43
6:43
+0:10
35K
21.75 mi12:23:032:21:336:314:40
6:14
-0:29
23M
23.00 mi12:31:072:29:376:308:04
6:27
+0:13
24M
24.00 mi12:37:232:35:536:306:16
6:16
-0:11
40K
24.85 mi12:42:502:41:206:295:27
6:22
+0:06
25.2M
25.20 mi12:45:132:43:436:302:23
6:55
+0:33
Finish
26.22 mi12:51:332:50:036:296:20
6:13
-0:42

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

6:13 /mi

Average Pace

6:29 /mi

Slowest Pace

6:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:47:40

99% of race

Time at Steady Pace

2:23

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:29 /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 mi10:21:5420:246:3420:24
6:34
#2636
10K
6.21 mi10:41:5840:286:3120:04
6:28
#2581
15K
9.32 mi11:02:051:00:356:3020:07
6:28
#2526
20K
12.43 mi11:22:181:20:486:3020:13
6:30
#2458
Half
13.11 mi11:26:421:25:126:304:24
6:27
#2453
25K
15.53 mi11:42:291:40:596:3015:47
6:31
#2415
30K
18.64 mi12:02:462:01:166:3020:17
6:32
#2257
20M
20.00 mi12:11:402:10:106:308:54
6:33
#2185
21M
21.00 mi12:18:232:16:536:316:43
6:43
#2092
35K
21.75 mi12:23:032:21:336:314:40
6:14
#2051
23M
23.00 mi12:31:072:29:376:308:04
6:27
#1959
24M
24.00 mi12:37:232:35:536:306:16
6:16
#1905
40K
24.85 mi12:42:502:41:206:295:27
6:22
#1859
25.2M
25.20 mi12:45:132:43:436:302:23
6:55
#1841
Finish
26.22 mi12:51:332:50:036:296:20
6:13
#1795
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi2636251025102476(Top 9%)2375(Top 16%)2375(Top 105%)
10K6.21 mi3.10 mi2581+552461+492461+492534(Top 10%)2421(Top 16%)2421(Top 108%)
15K9.32 mi3.11 mi2526+552413+482413+482476(Top 9%)2375(Top 16%)2375(Top 105%)
20K12.43 mi3.11 mi2458+682353+602353+602316(Top 9%)2219(Top 15%)2219(Top 99%)
Half13.11 mi0.68 mi2453+52350+32350+32436(Top 9%)2335(Top 15%)2335(Top 104%)
25K15.53 mi2.42 mi2415+382315+352315+352197(Top 8%)2107(Top 14%)2107(Top 94%)
30K18.64 mi3.11 mi2257+1582165+1502165+1501673(Top 6%)1600(Top 11%)1600(Top 71%)
20M20.00 mi1.36 mi2185+722095+702095+701640(Top 6%)1564(Top 10%)1564(Top 69%)
21M21.00 mi1.00 mi2092+932005+902005+901152(Top 4%)1098(Top 7%)1098(Top 49%)
35K21.75 mi0.75 mi2051+411967+381967+381373(Top 5%)1303(Top 9%)1303(Top 58%)
23M23.00 mi1.25 mi1959+921878+891878+891246(Top 5%)1177(Top 8%)1177(Top 52%)
24M24.00 mi1.00 mi1905+541824+541824+541262(Top 5%)1196(Top 8%)1196(Top 53%)
40K24.85 mi0.85 mi1859+461778+461778+461133(Top 4%)1072(Top 7%)1072(Top 48%)
25.2M25.20 mi0.35 mi1841+181760+181760+181467(Top 6%)1384(Top 9%)1384(Top 61%)
Finish26.22 mi1.02 mi1795+461714+461714+461328(Top 5%)1258(Top 8%)1258(Top 56%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 9%
×21stories
+97ft-345ft

Overall

2476

Males

2375

M45-49

2375

5K→10K

3.1 - 6.2 mi

Top 10%
×5stories
+79ft-138ft

Overall

2534

Males

2421

M45-49

2421

10K→15K

6.2 - 9.3 mi

Top 9%
×3stories
+67ft-78ft

Overall

2476

Males

2375

M45-49

2375

15K→20K

9.3 - 12.4 mi

Top 9%
×5stories
+106ft-86ft

Overall

2316

Males

2219

M45-49

2219

20K→Half

12.4 - 13.1 mi

Top 9%
×2stories
+19ft-37ft

Overall

2436

Males

2335

M45-49

2335

Half→25K

13.1 - 15.5 mi

Top 8%
×4stories
+66ft-88ft

Overall

2197

Males

2107

M45-49

2107

25K→30K

15.5 - 18.6 mi

Top 6%
×9stories
+181ft-148ft

Overall

1673

Males

1600

M45-49

1600

30K→20M

18.6 - 20.0 mi

Top 6%
×5stories
+64ft-50ft

Overall

1640

Males

1564

M45-49

1564

20M→21M

20.0 - 21.0 mi

Top 4%
×8stories
+106ft-24ft

Overall

1152

Males

1098

M45-49

1098

21M→35K

21.0 - 21.8 mi

Top 5%
×7stories
+17ft-86ft

Overall

1373

Males

1303

M45-49

1303

35K→23M

21.8 - 23.0 mi

Top 5%
×5stories
+23ft-63ft

Overall

1246

Males

1177

M45-49

1177

23M→24M

23.0 - 24.0 mi

Top 5%
×6stories
+12ft-82ft

Overall

1262

Males

1196

M45-49

1196

24M→40K

24.0 - 24.9 mi

Top 4%
×1story
+6ft-20ft

Overall

1133

Males

1072

M45-49

1072

40K→25.2M

24.9 - 25.2 mi

Top 6%
×1story
+13ft-16ft

Overall

1467

Males

1384

M45-49

1384

25.2M→Finish

25.2 - 26.2 mi

Top 5%
×2stories
+22ft-21ft

Overall

1328

Males

1258

M45-49

1258

Passing Analysis

Category:
Athletes Passed
1128
Passed By
287
Net Change
+841
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2636
5K → 10K176121+55#2636#2581
10K → 15K10550+55#2581#2526
15K → 20K10234+68#2526#2458
20K → Half138+5#2458#2453
Half → 25K6931+38#2453#2415
25K → 30K1635+158#2415#2257
30K → 20M753+72#2257#2185
20M → 21M985+93#2185#2092
21M → 35K410+41#2092#2051
35K → 23M942+92#2051#1959
23M → 24M628+54#1959#1905
24M → 40K526+46#1905#1859
40K → 25.2M202+18#1859#1841
25.2M → Finish5812+46#1841#1795
TOTALS1128287+841
📊

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