Boston Marathon logo
BOSTON MARATHON 2023

James Seckel

Bib: 13615•M

TN

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 49%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M50-54)
#0 / 2052
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:42
Rank: #10793
Start → 5K
23:42 | 7:38/mi
10K· 6.21 mi
47:30
Rank: #11301 (-508)
5K → 10K
23:48 | 7:40/mi
15K· 9.32 mi
1:10:57
Rank: #11030 (+271)
10K → 15K
23:27 | 7:33/mi
20K· 12.43 mi
1:34:46
Rank: #10926 (+104)
15K → 20K
23:49 | 7:40/mi
Half· 13.11 mi
1:40:02
Rank: #10975 (-49)
20K → Half
5:16 | 7:43/mi
25K· 15.53 mi
1:59:06
Rank: #11035 (-60)
Half → 25K
19:04 | 7:52/mi
30K· 18.64 mi
2:24:41
Rank: #11262 (-227)
25K → 30K
25:35 | 8:14/mi
20M
2:36:13
Rank: #11453 (-191)
30K → 20M
11:32 | 8:29/mi
21M
2:45:23
Rank: #11652 (-199)
20M → 21M
9:10 | 9:10/mi
35K· 21.75 mi
2:51:40
Rank: #11795 (-143)
21M → 35K
6:17 | 8:24/mi
23M
3:03:08
Rank: #12151 (-356)
35K → 23M
11:28 | 9:09/mi
24M
3:12:02
Rank: #12386 (-235)
23M → 24M
8:54 | 8:54/mi
40K· 24.85 mi
3:19:58
Rank: #12633 (-247)
24M → 40K
7:56 | 9:17/mi
25.2M
3:23:22
Rank: #12711 (-78)
40K → 25.2M
3:24 | 9:52/mi
Finish· 26.22 mi
3:32:34
Rank: #12948 (-237)
25.2M → Finish
9:12 | 9:02/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
Time1:40:02
Pace7:38 /mi
2nd Half
Distance13.11 mi
Time1:52:32
Pace8:35 /mi
📊Positive Split: 12.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:3623:427:3823:42
7:38
-
10K
6.21 mi11:15:2447:307:3923:48
7:40
+0:02
15K
9.32 mi11:38:511:10:577:3723:27
7:33
-0:07
20K
12.43 mi12:02:401:34:467:3823:49
7:40
+0:07
Half
13.11 mi12:07:561:40:027:385:16
7:43
+0:03
25K
15.53 mi12:27:001:59:067:4019:04
7:52
+0:09
30K
18.64 mi12:52:352:24:417:4625:35
8:14
+0:22
20M
20.00 mi13:04:072:36:137:4911:32
8:29
+0:15
21M
21.00 mi13:13:172:45:237:539:10
9:10
+0:41
35K
21.75 mi13:19:342:51:407:546:17
8:24
-0:46
23M
23.00 mi13:31:023:03:087:5811:28
9:09
+0:45
24M
24.00 mi13:39:563:12:028:008:54
8:54
-0:15
40K
24.85 mi13:47:523:19:588:037:56
9:17
+0:23
25.2M
25.20 mi13:51:163:23:228:043:24
9:52
+0:35
Finish
26.22 mi14:00:283:32:348:079:12
9:02
-0:50

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

7:33 /mi

Average Pace

8:07 /mi

Slowest Pace

9:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:59:06

56% of race

Time at Steady Pace

43:24

20% of race

Time at Slower Pace

50:04

24% of race

Average Pace: 8:06 /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 mi10:51:3623:427:3823:42
7:38
#10793
10K
6.21 mi11:15:2447:307:3923:48
7:40
#11301
15K
9.32 mi11:38:511:10:577:3723:27
7:33
#11030
20K
12.43 mi12:02:401:34:467:3823:49
7:40
#10926
Half
13.11 mi12:07:561:40:027:385:16
7:43
#10975
25K
15.53 mi12:27:001:59:067:4019:04
7:52
#11035
30K
18.64 mi12:52:352:24:417:4625:35
8:14
#11262
20M
20.00 mi13:04:072:36:137:4911:32
8:29
#11453
21M
21.00 mi13:13:172:45:237:539:10
9:10
#11652
35K
21.75 mi13:19:342:51:407:546:17
8:24
#11795
23M
23.00 mi13:31:023:03:087:5811:28
9:09
#12151
24M
24.00 mi13:39:563:12:028:008:54
8:54
#12386
40K
24.85 mi13:47:523:19:588:037:56
9:17
#12633
25.2M
25.20 mi13:51:163:23:228:043:24
9:52
#12711
Finish
26.22 mi14:00:283:32:348:079:12
9:02
#12948
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi107938565856510558(Top 40%)8432(Top 56%)8432(Top 411%)
10K6.21 mi3.10 mi11301-5088793-2288793-22811876(Top 45%)9065(Top 60%)9065(Top 442%)
15K9.32 mi3.11 mi11030+2718670+1238670+12310558(Top 40%)8432(Top 56%)8432(Top 411%)
20K12.43 mi3.11 mi10926+1048613+578613+5710635(Top 40%)8403(Top 55%)8403(Top 410%)
Half13.11 mi0.68 mi10975-498639-268639-2612005(Top 45%)9082(Top 60%)9082(Top 443%)
25K15.53 mi2.42 mi11035-608645-68645-611635(Top 44%)8770(Top 58%)8770(Top 427%)
30K18.64 mi3.11 mi11262-2278677-328677-3212563(Top 47%)9049(Top 60%)9049(Top 441%)
20M20.00 mi1.36 mi11453-1918746-698746-6913526(Top 51%)9368(Top 62%)9368(Top 457%)
21M21.00 mi1.00 mi11652-1998817-718817-7114280(Top 54%)9613(Top 63%)9613(Top 468%)
35K21.75 mi0.75 mi11795-1438869-528869-5214665(Top 55%)9716(Top 64%)9716(Top 473%)
23M23.00 mi1.25 mi12151-3568995-1268995-12616818(Top 63%)10596(Top 70%)10596(Top 516%)
24M24.00 mi1.00 mi12386-2359082-879082-8716738(Top 63%)10493(Top 69%)10493(Top 511%)
40K24.85 mi0.85 mi12633-2479166-849166-8417399(Top 65%)10748(Top 71%)10748(Top 524%)
25.2M25.20 mi0.35 mi12711-789189-239189-2316741(Top 63%)10427(Top 69%)10427(Top 508%)
Finish26.22 mi1.02 mi12948-2379259-709259-7018080(Top 68%)11109(Top 73%)11109(Top 541%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21stories
+97ft-345ft

Overall

10558

Males

8432

M50-54

8432

5K→10K

3.1 - 6.2 mi

Top 45%
×5stories
+79ft-138ft

Overall

11876

Males

9065

M50-54

9065

10K→15K

6.2 - 9.3 mi

Top 40%
×3stories
+67ft-78ft

Overall

10558

Males

8432

M50-54

8432

15K→20K

9.3 - 12.4 mi

Top 40%
×5stories
+106ft-86ft

Overall

10635

Males

8403

M50-54

8403

20K→Half

12.4 - 13.1 mi

Top 45%
×2stories
+19ft-37ft

Overall

12005

Males

9082

M50-54

9082

Half→25K

13.1 - 15.5 mi

Top 44%
×4stories
+66ft-88ft

Overall

11635

Males

8770

M50-54

8770

25K→30K

15.5 - 18.6 mi

Top 47%
×9stories
+181ft-148ft

Overall

12563

Males

9049

M50-54

9049

30K→20M

18.6 - 20.0 mi

Top 51%
×5stories
+64ft-50ft

Overall

13526

Males

9368

M50-54

9368

20M→21M

20.0 - 21.0 mi

Top 54%
×8stories
+106ft-24ft

Overall

14280

Males

9613

M50-54

9613

21M→35K

21.0 - 21.8 mi

Top 55%
×7stories
+17ft-86ft

Overall

14665

Males

9716

M50-54

9716

35K→23M

21.8 - 23.0 mi

Top 63%
×5stories
+23ft-63ft

Overall

16818

Males

10596

M50-54

10596

23M→24M

23.0 - 24.0 mi

Top 63%
×6stories
+12ft-82ft

Overall

16738

Males

10493

M50-54

10493

24M→40K

24.0 - 24.9 mi

Top 65%
×1story
+6ft-20ft

Overall

17399

Males

10748

M50-54

10748

40K→25.2M

24.9 - 25.2 mi

Top 63%
×1story
+13ft-16ft

Overall

16741

Males

10427

M50-54

10427

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×2stories
+22ft-21ft

Overall

18080

Males

11109

M50-54

11109

Passing Analysis

Category:
Athletes Passed
1087
Passed By
3242
Net Change
-2155
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10793
5K → 10K125633-508#10793#11301
10K → 15K34473+271#11301#11030
15K → 20K207103+104#11030#10926
20K → Half958-49#10926#10975
Half → 25K104164-60#10975#11035
25K → 30K116343-227#11035#11262
30K → 20M37228-191#11262#11453
20M → 21M37236-199#11453#11652
21M → 35K14157-143#11652#11795
35K → 23M31387-356#11795#12151
23M → 24M19254-235#12151#12386
24M → 40K15262-247#12386#12633
40K → 25.2M1290-78#12633#12711
25.2M → Finish17254-237#12711#12948
TOTALS10873242-2155
📊

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