Boston Marathon logo
BOSTON MARATHON 2023

Brendan Terry

Bib: 2270•M

CT

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 16%
Gender (Male)
#0 / 15176
Top 26%
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
21:23
Rank: #5413
Start → 5K
21:23 | 6:53/mi
10K· 6.21 mi
42:23
Rank: #5120 (+293)
5K → 10K
21:00 | 6:46/mi
15K· 9.32 mi
1:03:11
Rank: #4787 (+333)
10K → 15K
20:48 | 6:42/mi
20K· 12.43 mi
1:24:06
Rank: #4519 (+268)
15K → 20K
20:55 | 6:44/mi
Half· 13.11 mi
1:28:42
Rank: #4517 (+2)
20K → Half
4:36 | 6:45/mi
25K· 15.53 mi
1:45:43
Rank: #4751 (-234)
Half → 25K
17:01 | 7:01/mi
30K· 18.64 mi
2:08:01
Rank: #4903 (-152)
25K → 30K
22:18 | 7:11/mi
20M
2:17:54
Rank: #4951 (-48)
30K → 20M
9:53 | 7:16/mi
21M
2:25:14
Rank: #4843 (+108)
20M → 21M
7:20 | 7:20/mi
35K· 21.75 mi
2:30:23
Rank: #4828 (+15)
21M → 35K
5:09 | 6:53/mi
23M
2:39:00
Rank: #4679 (+149)
35K → 23M
8:37 | 6:53/mi
24M
2:45:59
Rank: #4642 (+37)
23M → 24M
6:59 | 6:59/mi
40K· 24.85 mi
2:51:48
Rank: #4542 (+100)
24M → 40K
5:49 | 6:48/mi
25.2M
2:54:12
Rank: #4483 (+59)
40K → 25.2M
2:24 | 6:58/mi
Finish· 26.22 mi
3:00:30
Rank: #4307 (+176)
25.2M → Finish
6:18 | 6:11/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
Time1:28:42
Pace6:46 /mi
2nd Half
Distance13.11 mi
Time1:31:48
Pace7:00 /mi
📊Positive Split: 3.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:2521:236:5321:23
6:53
-
10K
6.21 mi10:43:2542:236:4921:00
6:46
-0:07
15K
9.32 mi11:04:131:03:116:4720:48
6:42
-0:04
20K
12.43 mi11:25:081:24:066:4620:55
6:44
+0:02
Half
13.11 mi11:29:441:28:426:464:36
6:45
+0:01
25K
15.53 mi11:46:451:45:436:4817:01
7:01
+0:16
30K
18.64 mi12:09:032:08:016:5222:18
7:11
+0:10
20M
20.00 mi12:18:562:17:546:549:53
7:16
+0:05
21M
21.00 mi12:26:162:25:146:557:20
7:20
+0:04
35K
21.75 mi12:31:252:30:236:555:09
6:53
-0:27
23M
23.00 mi12:40:022:39:006:558:37
6:53
0:00
24M
24.00 mi12:47:012:45:596:556:59
6:59
+0:06
40K
24.85 mi12:52:502:51:486:555:49
6:48
-0:11
25.2M
25.20 mi12:55:142:54:126:552:24
6:58
+0:10
Finish
26.22 mi13:01:323:00:306:536:18
6:11
-0:47

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

6:11 /mi

Average Pace

6:53 /mi

Slowest Pace

7:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:19:26

44% of race

Time at Steady Pace

1:33:44

52% of race

Time at Slower Pace

7:20

4% of race

Average Pace: 6:53 /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 mi10:22:2521:236:5321:23
6:53
#5413
10K
6.21 mi10:43:2542:236:4921:00
6:46
#5120
15K
9.32 mi11:04:131:03:116:4720:48
6:42
#4787
20K
12.43 mi11:25:081:24:066:4620:55
6:44
#4519
Half
13.11 mi11:29:441:28:426:464:36
6:45
#4517
25K
15.53 mi11:46:451:45:436:4817:01
7:01
#4751
30K
18.64 mi12:09:032:08:016:5222:18
7:11
#4903
20M
20.00 mi12:18:562:17:546:549:53
7:16
#4951
21M
21.00 mi12:26:162:25:146:557:20
7:20
#4843
35K
21.75 mi12:31:252:30:236:555:09
6:53
#4828
23M
23.00 mi12:40:022:39:006:558:37
6:53
#4679
24M
24.00 mi12:47:012:45:596:556:59
6:59
#4642
40K
24.85 mi12:52:502:51:486:555:49
6:48
#4542
25.2M
25.20 mi12:55:142:54:126:552:24
6:58
#4483
Finish
26.22 mi13:01:323:00:306:536:18
6:11
#4307
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5413499849984082(Top 15%)3831(Top 25%)3831(Top 72%)
10K6.21 mi3.10 mi5120+2934744+2544744+2544894(Top 18%)4539(Top 30%)4539(Top 86%)
15K9.32 mi3.11 mi4787+3334454+2904454+2904082(Top 15%)3831(Top 25%)3831(Top 72%)
20K12.43 mi3.11 mi4519+2684220+2344220+2343830(Top 14%)3612(Top 24%)3612(Top 68%)
Half13.11 mi0.68 mi4517+2422042204721(Top 18%)4383(Top 29%)4383(Top 83%)
25K15.53 mi2.42 mi4751-2344424-2044424-2045661(Top 21%)5186(Top 34%)5186(Top 98%)
30K18.64 mi3.11 mi4903-1524561-1374561-1375358(Top 20%)4883(Top 32%)4883(Top 92%)
20M20.00 mi1.36 mi4951-484594-334594-335457(Top 20%)4888(Top 32%)4888(Top 92%)
21M21.00 mi1.00 mi4843+1084499+954499+953794(Top 14%)3517(Top 23%)3517(Top 67%)
35K21.75 mi0.75 mi4828+154484+154484+154661(Top 18%)4226(Top 28%)4226(Top 80%)
23M23.00 mi1.25 mi4679+1494350+1344350+1343133(Top 12%)2919(Top 19%)2919(Top 55%)
24M24.00 mi1.00 mi4642+374318+324318+324579(Top 17%)4115(Top 27%)4115(Top 78%)
40K24.85 mi0.85 mi4542+1004229+894229+892869(Top 11%)2643(Top 17%)2643(Top 50%)
25.2M25.20 mi0.35 mi4483+594176+534176+531674(Top 6%)1580(Top 10%)1580(Top 30%)
Finish26.22 mi1.02 mi4307+1764018+1584018+1581237(Top 5%)1178(Top 8%)1178(Top 22%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 15%
×21stories
+97ft-345ft

Overall

4082

Males

3831

M18-39

3831

5K→10K

3.1 - 6.2 mi

Top 18%
×5stories
+79ft-138ft

Overall

4894

Males

4539

M18-39

4539

10K→15K

6.2 - 9.3 mi

Top 15%
×3stories
+67ft-78ft

Overall

4082

Males

3831

M18-39

3831

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

3830

Males

3612

M18-39

3612

20K→Half

12.4 - 13.1 mi

Top 18%
×2stories
+19ft-37ft

Overall

4721

Males

4383

M18-39

4383

Half→25K

13.1 - 15.5 mi

Top 21%
×4stories
+66ft-88ft

Overall

5661

Males

5186

M18-39

5186

25K→30K

15.5 - 18.6 mi

Top 20%
×9stories
+181ft-148ft

Overall

5358

Males

4883

M18-39

4883

30K→20M

18.6 - 20.0 mi

Top 20%
×5stories
+64ft-50ft

Overall

5457

Males

4888

M18-39

4888

20M→21M

20.0 - 21.0 mi

Top 14%
×8stories
+106ft-24ft

Overall

3794

Males

3517

M18-39

3517

21M→35K

21.0 - 21.8 mi

Top 18%
×7stories
+17ft-86ft

Overall

4661

Males

4226

M18-39

4226

35K→23M

21.8 - 23.0 mi

Top 12%
×5stories
+23ft-63ft

Overall

3133

Males

2919

M18-39

2919

23M→24M

23.0 - 24.0 mi

Top 17%
×6stories
+12ft-82ft

Overall

4579

Males

4115

M18-39

4115

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

2869

Males

2643

M18-39

2643

40K→25.2M

24.9 - 25.2 mi

Top 6%
×1story
+13ft-16ft

Overall

1674

Males

1580

M18-39

1580

25.2M→Finish

25.2 - 26.2 mi

Top 5%
×2stories
+22ft-21ft

Overall

1237

Males

1178

M18-39

1178

Passing Analysis

Category:
Athletes Passed
1954
Passed By
848
Net Change
+1106
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5413
5K → 10K36976+293#5413#5120
10K → 15K35118+333#5120#4787
15K → 20K28214+268#4787#4519
20K → Half2826+2#4519#4517
Half → 25K51285-234#4517#4751
25K → 30K93245-152#4751#4903
30K → 20M52100-48#4903#4951
20M → 21M12012+108#4951#4843
21M → 35K4732+15#4843#4828
35K → 23M1567+149#4828#4679
23M → 24M6124+37#4679#4642
24M → 40K1066+100#4642#4542
40K → 25.2M601+59#4542#4483
25.2M → Finish1782+176#4483#4307
TOTALS1954848+1106
📊

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