Boston Marathon logo
BOSTON MARATHON 2024

Brian Thorn

Bib: 2566•M

IA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 25550
Top 3%
Gender (Male)
#0 / 14578
Top 5%
Masters (Masters Men)
#0 / 9729
Top 1%
Division (M40-44)
#0 / 2009
Top 4%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:27
Rank: #1872
Start → 5K
19:27 | 6:16/mi
10K· 6.21 mi
38:52
Rank: #1767 (+105)
5K → 10K
19:25 | 6:15/mi
15K· 9.32 mi
58:20
Rank: #1692 (+75)
10K → 15K
19:28 | 6:16/mi
20K· 12.43 mi
1:17:44
Rank: #1525 (+167)
15K → 20K
19:24 | 6:15/mi
Half· 13.11 mi
1:21:54
Rank: #1492 (+33)
20K → Half
4:10 | 6:06/mi
25K· 15.53 mi
1:36:59
Rank: #1346 (+146)
Half → 25K
15:05 | 6:13/mi
30K· 18.64 mi
1:56:39
Rank: #1160 (+186)
25K → 30K
19:40 | 6:20/mi
20M
2:05:16
Rank: #1059 (+101)
30K → 20M
8:37 | 6:20/mi
21M
2:11:47
Rank: #961 (+98)
20M → 21M
6:31 | 6:31/mi
35K· 21.75 mi
2:16:22
Rank: #923 (+38)
21M → 35K
4:35 | 6:08/mi
23M
2:24:14
Rank: #866 (+57)
35K → 23M
7:52 | 6:17/mi
24M
2:30:20
Rank: #811 (+55)
23M → 24M
6:06 | 6:06/mi
40K· 24.85 mi
2:35:37
Rank: #773 (+38)
24M → 40K
5:17 | 6:11/mi
25.2M
2:37:51
Rank: #746 (+27)
40K → 25.2M
2:14 | 6:29/mi
Finish· 26.22 mi
2:43:45
Rank: #693 (+53)
25.2M → Finish
5:54 | 5:47/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
Time1:21:54
Pace6:15 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:21:51
Pace6:15 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:5419:276:1619:27
6:16
-
10K
6.21 mi10:40:1938:526:1519:25
6:15
-0:01
15K
9.32 mi10:59:4758:206:1619:28
6:16
+0:01
20K
12.43 mi11:19:111:17:446:1519:24
6:15
-0:01
Half
13.11 mi11:23:211:21:546:154:10
6:06
-0:09
25K
15.53 mi11:38:261:36:596:1515:05
6:13
+0:07
30K
18.64 mi11:58:061:56:396:1519:40
6:20
+0:07
20M
20.00 mi12:06:432:05:166:168:37
6:20
0:00
21M
21.00 mi12:13:142:11:476:176:31
6:31
+0:11
35K
21.75 mi12:17:492:16:226:164:35
6:08
-0:23
23M
23.00 mi12:25:412:24:146:167:52
6:17
+0:09
24M
24.00 mi12:31:472:30:206:166:06
6:06
-0:11
40K
24.85 mi12:37:042:35:376:165:17
6:11
+0:05
25.2M
25.20 mi12:39:182:37:516:162:14
6:29
+0:18
Finish
26.22 mi12:45:122:43:456:155:54
5:47
-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

5:47 /mi

Average Pace

6:15 /mi

Slowest Pace

6:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:35:00

95% of race

Time at Steady Pace

8:45

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:15 /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 mi10:20:5419:276:1619:27
6:16
#1872
10K
6.21 mi10:40:1938:526:1519:25
6:15
#1767
15K
9.32 mi10:59:4758:206:1619:28
6:16
#1692
20K
12.43 mi11:19:111:17:446:1519:24
6:15
#1525
Half
13.11 mi11:23:211:21:546:154:10
6:06
#1492
25K
15.53 mi11:38:261:36:596:1515:05
6:13
#1346
30K
18.64 mi11:58:061:56:396:1519:40
6:20
#1160
20M
20.00 mi12:06:432:05:166:168:37
6:20
#1059
21M
21.00 mi12:13:142:11:476:176:31
6:31
#961
35K
21.75 mi12:17:492:16:226:164:35
6:08
#923
23M
23.00 mi12:25:412:24:146:167:52
6:17
#866
24M
24.00 mi12:31:472:30:206:166:06
6:06
#811
40K
24.85 mi12:37:042:35:376:165:17
6:11
#773
25.2M
25.20 mi12:39:182:37:516:162:14
6:29
#746
Finish
26.22 mi12:45:122:43:456:155:54
5:47
#693
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi1872180918091602(Top 6%)1550(Top 11%)1550(Top 77%)
10K6.21 mi3.10 mi1767+1051708+1011708+1011681(Top 7%)1629(Top 11%)1629(Top 81%)
15K9.32 mi3.11 mi1692+751638+701638+701602(Top 6%)1550(Top 11%)1550(Top 77%)
20K12.43 mi3.11 mi1525+1671477+1611477+1611169(Top 5%)1131(Top 8%)1131(Top 56%)
Half13.11 mi0.68 mi1492+331446+311446+311032(Top 4%)998(Top 7%)998(Top 50%)
25K15.53 mi2.42 mi1346+1461302+1441302+144898(Top 4%)865(Top 6%)865(Top 43%)
30K18.64 mi3.11 mi1160+1861120+1821120+182689(Top 3%)658(Top 5%)658(Top 33%)
20M20.00 mi1.36 mi1059+1011021+991021+99574(Top 2%)544(Top 4%)544(Top 27%)
21M21.00 mi1.00 mi961+98924+97924+97361(Top 1%)338(Top 2%)338(Top 17%)
35K21.75 mi0.75 mi923+38886+38886+38514(Top 2%)482(Top 3%)482(Top 24%)
23M23.00 mi1.25 mi866+57832+54832+54402(Top 2%)374(Top 3%)374(Top 19%)
24M24.00 mi1.00 mi811+55778+54778+54346(Top 1%)319(Top 2%)319(Top 16%)
40K24.85 mi0.85 mi773+38741+37741+37321(Top 1%)296(Top 2%)296(Top 15%)
25.2M25.20 mi0.35 mi746+27714+27714+27167(Top 0.7%)152(Top 1%)152(Top 8%)
Finish26.22 mi1.02 mi693+53661+53661+53220(Top 0.9%)204(Top 1%)204(Top 10%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×21stories
+97ft-345ft

Overall

1602

Males

1550

M40-44

1550

5K→10K

3.1 - 6.2 mi

Top 7%
×5stories
+79ft-138ft

Overall

1681

Males

1629

M40-44

1629

10K→15K

6.2 - 9.3 mi

Top 6%
×3stories
+67ft-78ft

Overall

1602

Males

1550

M40-44

1550

15K→20K

9.3 - 12.4 mi

Top 5%
×5stories
+106ft-86ft

Overall

1169

Males

1131

M40-44

1131

20K→Half

12.4 - 13.1 mi

Top 4%
×2stories
+19ft-37ft

Overall

1032

Males

998

M40-44

998

Half→25K

13.1 - 15.5 mi

Top 4%
×4stories
+66ft-88ft

Overall

898

Males

865

M40-44

865

25K→30K

15.5 - 18.6 mi

Top 3%
×9stories
+181ft-148ft

Overall

689

Males

658

M40-44

658

30K→20M

18.6 - 20.0 mi

Top 2%
×5stories
+64ft-50ft

Overall

574

Males

544

M40-44

544

20M→21M

20.0 - 21.0 mi

Top 1%
×8stories
+106ft-24ft

Overall

361

Males

338

M40-44

338

21M→35K

21.0 - 21.8 mi

Top 2%
×7stories
+17ft-86ft

Overall

514

Males

482

M40-44

482

35K→23M

21.8 - 23.0 mi

Top 2%
×5stories
+23ft-63ft

Overall

402

Males

374

M40-44

374

23M→24M

23.0 - 24.0 mi

Top 1%
×6stories
+12ft-82ft

Overall

346

Males

319

M40-44

319

24M→40K

24.0 - 24.9 mi

Top 1%
×1story
+6ft-20ft

Overall

321

Males

296

M40-44

296

40K→25.2M

24.9 - 25.2 mi

Top 0.7%
×1story
+13ft-16ft

Overall

167

Males

152

M40-44

152

25.2M→Finish

25.2 - 26.2 mi

Top 0.9%
×2stories
+22ft-21ft

Overall

220

Males

204

M40-44

204

Passing Analysis

Category:
Athletes Passed
1279
Passed By
100
Net Change
+1179
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1872
5K → 10K15449+105#1872#1767
10K → 15K10833+75#1767#1692
15K → 20K1747+167#1692#1525
20K → Half352+33#1525#1492
Half → 25K1471+146#1492#1346
25K → 30K1893+186#1346#1160
30K → 20M1021+101#1160#1059
20M → 21M980+98#1059#961
21M → 35K380+38#961#923
35K → 23M603+57#923#866
23M → 24M550+55#866#811
24M → 40K380+38#811#773
40K → 25.2M270+27#773#746
25.2M → Finish541+53#746#693
TOTALS1279100+1179
📊

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