Boston Marathon logo
BOSTON MARATHON 2023

Thomas Yahiel

Bib: 4970•M

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 36%
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
22:18
Rank: #7365
Start → 5K
22:18 | 7:11/mi
10K· 6.21 mi
44:53
Rank: #7925 (-560)
5K → 10K
22:35 | 7:16/mi
15K· 9.32 mi
1:07:26
Rank: #8010 (-85)
10K → 15K
22:33 | 7:15/mi
20K· 12.43 mi
1:30:03
Rank: #7868 (+142)
15K → 20K
22:37 | 7:17/mi
Half· 13.11 mi
1:34:58
Rank: #7870 (-2)
20K → Half
4:55 | 7:12/mi
25K· 15.53 mi
1:53:12
Rank: #7975 (-105)
Half → 25K
18:14 | 7:31/mi
30K· 18.64 mi
2:17:26
Rank: #8173 (-198)
25K → 30K
24:14 | 7:48/mi
20M
2:28:41
Rank: #8430 (-257)
30K → 20M
11:15 | 8:17/mi
21M
2:38:14
Rank: #8926 (-496)
20M → 21M
9:33 | 9:33/mi
35K· 21.75 mi
2:44:17
Rank: #9046 (-120)
21M → 35K
6:03 | 8:05/mi
23M
2:55:08
Rank: #9316 (-270)
35K → 23M
10:51 | 8:40/mi
24M
3:03:16
Rank: #9453 (-137)
23M → 24M
8:08 | 8:08/mi
40K· 24.85 mi
3:10:22
Rank: #9507 (-54)
24M → 40K
7:06 | 8:18/mi
25.2M
3:13:08
Rank: #9436 (+71)
40K → 25.2M
2:46 | 8:01/mi
Finish· 26.22 mi
3:21:18
Rank: #9530 (-94)
25.2M → Finish
8:10 | 8:01/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
Time1:34:58
Pace7:15 /mi
2nd Half
Distance13.11 mi
Time1:46:20
Pace8:07 /mi
📊Positive Split: 12.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:1422:187:1122:18
7:11
-
10K
6.21 mi10:46:4944:537:1322:35
7:16
+0:05
15K
9.32 mi11:09:221:07:267:1422:33
7:15
-0:01
20K
12.43 mi11:31:591:30:037:1522:37
7:17
+0:02
Half
13.11 mi11:36:541:34:587:154:55
7:12
-0:05
25K
15.53 mi11:55:081:53:127:1718:14
7:31
+0:19
30K
18.64 mi12:19:222:17:267:2224:14
7:48
+0:17
20M
20.00 mi12:30:372:28:417:2611:15
8:17
+0:29
21M
21.00 mi12:40:102:38:147:329:33
9:33
+1:16
35K
21.75 mi12:46:132:44:177:336:03
8:05
-1:28
23M
23.00 mi12:57:042:55:087:3710:51
8:40
+0:35
24M
24.00 mi13:05:123:03:167:388:08
8:08
-0:32
40K
24.85 mi13:12:183:10:227:407:06
8:18
+0:10
25.2M
25.20 mi13:15:043:13:087:402:46
8:01
-0:17
Finish
26.22 mi13:23:143:21:187:418:10
8:01
0:00

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

7:11 /mi

Average Pace

7:41 /mi

Slowest Pace

9:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:53:12

56% of race

Time at Steady Pace

1:07:42

34% of race

Time at Slower Pace

20:24

10% of race

Average Pace: 7:41 /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 mi10:24:1422:187:1122:18
7:11
#7365
10K
6.21 mi10:46:4944:537:1322:35
7:16
#7925
15K
9.32 mi11:09:221:07:267:1422:33
7:15
#8010
20K
12.43 mi11:31:591:30:037:1522:37
7:17
#7868
Half
13.11 mi11:36:541:34:587:154:55
7:12
#7870
25K
15.53 mi11:55:081:53:127:1718:14
7:31
#7975
30K
18.64 mi12:19:222:17:267:2224:14
7:48
#8173
20M
20.00 mi12:30:372:28:417:2611:15
8:17
#8430
21M
21.00 mi12:40:102:38:147:329:33
9:33
#8926
35K
21.75 mi12:46:132:44:177:336:03
8:05
#9046
23M
23.00 mi12:57:042:55:087:3710:51
8:40
#9316
24M
24.00 mi13:05:123:03:167:388:08
8:08
#9453
40K
24.85 mi13:12:183:10:227:407:06
8:18
#9507
25.2M
25.20 mi13:15:043:13:087:402:46
8:01
#9436
Finish
26.22 mi13:23:143:21:187:418:10
8:01
#9530
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi7365655265528233(Top 31%)7070(Top 47%)7070(Top 134%)
10K6.21 mi3.10 mi7925-5606924-3726924-3728625(Top 32%)7344(Top 48%)7344(Top 139%)
15K9.32 mi3.11 mi8010-856960-366960-368233(Top 31%)7070(Top 47%)7070(Top 134%)
20K12.43 mi3.11 mi7868+1426855+1056855+1057630(Top 29%)6649(Top 44%)6649(Top 126%)
Half13.11 mi0.68 mi7870-26854+16854+17911(Top 30%)6859(Top 45%)6859(Top 130%)
25K15.53 mi2.42 mi7975-1056902-486902-488916(Top 33%)7381(Top 49%)7381(Top 140%)
30K18.64 mi3.11 mi8173-1986981-796981-799350(Top 35%)7477(Top 49%)7477(Top 141%)
20M20.00 mi1.36 mi8430-2577127-1467127-14612190(Top 46%)8782(Top 58%)8782(Top 166%)
21M21.00 mi1.00 mi8926-4967420-2937420-29316169(Top 61%)10418(Top 69%)10418(Top 197%)
35K21.75 mi0.75 mi9046-1207474-547474-5412669(Top 48%)8833(Top 58%)8833(Top 167%)
23M23.00 mi1.25 mi9316-2707601-1277601-12714136(Top 53%)9416(Top 62%)9416(Top 178%)
24M24.00 mi1.00 mi9453-1377665-647665-6412114(Top 46%)8440(Top 56%)8440(Top 160%)
40K24.85 mi0.85 mi9507-547665766512016(Top 45%)8313(Top 55%)8313(Top 157%)
25.2M25.20 mi0.35 mi9436+717608+577608+576489(Top 24%)5215(Top 34%)5215(Top 99%)
Finish26.22 mi1.02 mi9530-947638-307638-3012289(Top 46%)8403(Top 55%)8403(Top 159%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 31%
×21stories
+97ft-345ft

Overall

8233

Males

7070

M18-39

7070

5K→10K

3.1 - 6.2 mi

Top 32%
×5stories
+79ft-138ft

Overall

8625

Males

7344

M18-39

7344

10K→15K

6.2 - 9.3 mi

Top 31%
×3stories
+67ft-78ft

Overall

8233

Males

7070

M18-39

7070

15K→20K

9.3 - 12.4 mi

Top 29%
×5stories
+106ft-86ft

Overall

7630

Males

6649

M18-39

6649

20K→Half

12.4 - 13.1 mi

Top 30%
×2stories
+19ft-37ft

Overall

7911

Males

6859

M18-39

6859

Half→25K

13.1 - 15.5 mi

Top 33%
×4stories
+66ft-88ft

Overall

8916

Males

7381

M18-39

7381

25K→30K

15.5 - 18.6 mi

Top 35%
×9stories
+181ft-148ft

Overall

9350

Males

7477

M18-39

7477

30K→20M

18.6 - 20.0 mi

Top 46%
×5stories
+64ft-50ft

Overall

12190

Males

8782

M18-39

8782

20M→21M

20.0 - 21.0 mi

Top 61%
×8stories
+106ft-24ft

Overall

16169

Males

10418

M18-39

10418

21M→35K

21.0 - 21.8 mi

Top 48%
×7stories
+17ft-86ft

Overall

12669

Males

8833

M18-39

8833

35K→23M

21.8 - 23.0 mi

Top 53%
×5stories
+23ft-63ft

Overall

14136

Males

9416

M18-39

9416

23M→24M

23.0 - 24.0 mi

Top 46%
×6stories
+12ft-82ft

Overall

12114

Males

8440

M18-39

8440

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

12016

Males

8313

M18-39

8313

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6489

Males

5215

M18-39

5215

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2stories
+22ft-21ft

Overall

12289

Males

8403

M18-39

8403

Passing Analysis

Category:
Athletes Passed
777*
Passed By
2942
Net Change
-2165
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7365
5K → 10K61621-560#7365#7925
10K → 15K103188-85#7925#8010
15K → 20K18947+142#8010#7868
20K → Half1921-2#7868#7870
Half → 25K66171-105#7870#7975
25K → 30K76274-198#7975#8173
30K → 20M35292-257#8173#8430
20M → 21M7503-496#8430#8926
21M → 35K17137-120#8926#9046
35K → 23M25295-270#9046#9316
23M → 24M30167-137#9316#9453
24M → 40K42*96-54#9453#9507
40K → 25.2M765+71#9507#9436
25.2M → Finish31125-94#9436#9530
TOTALS777*2942-2165

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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