Boston Marathon logo
BOSTON MARATHON 2023

Terry Chough

Bib: 14955•M

CA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 47%
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
24:02
Rank: #11764
Start → 5K
24:02 | 7:44/mi
10K· 6.21 mi
47:35
Rank: #11410 (+354)
5K → 10K
23:33 | 7:35/mi
15K· 9.32 mi
1:11:05
Rank: #11159 (+251)
10K → 15K
23:30 | 7:34/mi
20K· 12.43 mi
1:34:40
Rank: #10849 (+310)
15K → 20K
23:35 | 7:35/mi
Half· 13.11 mi
1:39:47
Rank: #10823 (+26)
20K → Half
5:07 | 7:30/mi
25K· 15.53 mi
1:58:30
Rank: #10719 (+104)
Half → 25K
18:43 | 7:43/mi
30K· 18.64 mi
2:24:02
Rank: #10974 (-255)
25K → 30K
25:32 | 8:13/mi
20M
2:35:30
Rank: #11141 (-167)
30K → 20M
11:28 | 8:26/mi
21M
2:45:16
Rank: #11591 (-450)
20M → 21M
9:46 | 9:46/mi
35K· 21.75 mi
2:51:35
Rank: #11761 (-170)
21M → 35K
6:19 | 8:27/mi
23M
3:02:34
Rank: #11954 (-193)
35K → 23M
10:59 | 8:46/mi
24M
3:11:08
Rank: #12108 (-154)
23M → 24M
8:34 | 8:34/mi
40K· 24.85 mi
3:19:00
Rank: #12331 (-223)
24M → 40K
7:52 | 9:12/mi
25.2M
3:22:21
Rank: #12413 (-82)
40K → 25.2M
3:21 | 9:43/mi
Finish· 26.22 mi
3:30:42
Rank: #12448 (-35)
25.2M → Finish
8:21 | 8:12/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
Time1:39:47
Pace7:37 /mi
2nd Half
Distance13.11 mi
Time1:50:55
Pace8:28 /mi
📊Positive Split: 11.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:0724:027:4424:02
7:44
-
10K
6.21 mi11:16:4047:357:3923:33
7:35
-0:09
15K
9.32 mi11:40:101:11:057:3823:30
7:34
-0:01
20K
12.43 mi12:03:451:34:407:3723:35
7:35
+0:01
Half
13.11 mi12:08:521:39:477:375:07
7:30
-0:05
25K
15.53 mi12:27:351:58:307:3818:43
7:43
+0:13
30K
18.64 mi12:53:072:24:027:4425:32
8:13
+0:30
20M
20.00 mi13:04:352:35:307:4611:28
8:26
+0:13
21M
21.00 mi13:14:212:45:167:529:46
9:46
+1:20
35K
21.75 mi13:20:402:51:357:536:19
8:27
-1:19
23M
23.00 mi13:31:393:02:347:5610:59
8:46
+0:19
24M
24.00 mi13:40:133:11:087:588:34
8:34
-0:12
40K
24.85 mi13:48:053:19:008:007:52
9:12
+0:38
25.2M
25.20 mi13:51:263:22:218:023:21
9:43
+0:31
Finish
26.22 mi13:59:473:30:428:038:21
8:12
-1:31

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

7:30 /mi

Average Pace

8:03 /mi

Slowest Pace

9:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:58:30

56% of race

Time at Steady Pace

1:00:14

29% of race

Time at Slower Pace

31:58

15% of race

Average Pace: 8:02 /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 mi10:53:0724:027:4424:02
7:44
#11764
10K
6.21 mi11:16:4047:357:3923:33
7:35
#11410
15K
9.32 mi11:40:101:11:057:3823:30
7:34
#11159
20K
12.43 mi12:03:451:34:407:3723:35
7:35
#10849
Half
13.11 mi12:08:521:39:477:375:07
7:30
#10823
25K
15.53 mi12:27:351:58:307:3818:43
7:43
#10719
30K
18.64 mi12:53:072:24:027:4425:32
8:13
#10974
20M
20.00 mi13:04:352:35:307:4611:28
8:26
#11141
21M
21.00 mi13:14:212:45:167:529:46
9:46
#11591
35K
21.75 mi13:20:402:51:357:536:19
8:27
#11761
23M
23.00 mi13:31:393:02:347:5610:59
8:46
#11954
24M
24.00 mi13:40:133:11:087:588:34
8:34
#12108
40K
24.85 mi13:48:053:19:008:007:52
9:12
#12331
25.2M
25.20 mi13:51:263:22:218:023:21
9:43
#12413
Finish
26.22 mi13:59:473:30:428:038:21
8:12
#12448
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi117649020902010702(Top 40%)8510(Top 56%)8510(Top 415%)
10K6.21 mi3.10 mi11410+3548841+1798841+17911128(Top 42%)8729(Top 58%)8729(Top 425%)
15K9.32 mi3.11 mi11159+2518726+1158726+11510702(Top 40%)8510(Top 56%)8510(Top 415%)
20K12.43 mi3.11 mi10849+3108569+1578569+15710015(Top 38%)8083(Top 53%)8083(Top 394%)
Half13.11 mi0.68 mi10823+268554+158554+1510231(Top 38%)8243(Top 54%)8243(Top 402%)
25K15.53 mi2.42 mi10719+1048496+588496+5810451(Top 39%)8235(Top 54%)8235(Top 401%)
30K18.64 mi3.11 mi10974-2558568-728568-7212462(Top 47%)9005(Top 59%)9005(Top 439%)
20M20.00 mi1.36 mi11141-1678615-478615-4713227(Top 50%)9228(Top 61%)9228(Top 450%)
21M21.00 mi1.00 mi11591-4508792-1778792-17717091(Top 64%)10821(Top 71%)10821(Top 527%)
35K21.75 mi0.75 mi11761-1708854-628854-6214935(Top 56%)9840(Top 65%)9840(Top 480%)
23M23.00 mi1.25 mi11954-1938905-518905-5114810(Top 56%)9718(Top 64%)9718(Top 474%)
24M24.00 mi1.00 mi12108-1548954-498954-4914838(Top 56%)9679(Top 64%)9679(Top 472%)
40K24.85 mi0.85 mi12331-2239039-859039-8517076(Top 64%)10604(Top 70%)10604(Top 517%)
25.2M25.20 mi0.35 mi12413-829062-239062-2316101(Top 60%)10145(Top 67%)10145(Top 494%)
Finish26.22 mi1.02 mi12448-359057+59057+513370(Top 50%)8955(Top 59%)8955(Top 436%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21stories
+97ft-345ft

Overall

10702

Males

8510

M50-54

8510

5K→10K

3.1 - 6.2 mi

Top 42%
×5stories
+79ft-138ft

Overall

11128

Males

8729

M50-54

8729

10K→15K

6.2 - 9.3 mi

Top 40%
×3stories
+67ft-78ft

Overall

10702

Males

8510

M50-54

8510

15K→20K

9.3 - 12.4 mi

Top 38%
×5stories
+106ft-86ft

Overall

10015

Males

8083

M50-54

8083

20K→Half

12.4 - 13.1 mi

Top 38%
×2stories
+19ft-37ft

Overall

10231

Males

8243

M50-54

8243

Half→25K

13.1 - 15.5 mi

Top 39%
×4stories
+66ft-88ft

Overall

10451

Males

8235

M50-54

8235

25K→30K

15.5 - 18.6 mi

Top 47%
×9stories
+181ft-148ft

Overall

12462

Males

9005

M50-54

9005

30K→20M

18.6 - 20.0 mi

Top 50%
×5stories
+64ft-50ft

Overall

13227

Males

9228

M50-54

9228

20M→21M

20.0 - 21.0 mi

Top 64%
×8stories
+106ft-24ft

Overall

17091

Males

10821

M50-54

10821

21M→35K

21.0 - 21.8 mi

Top 56%
×7stories
+17ft-86ft

Overall

14935

Males

9840

M50-54

9840

35K→23M

21.8 - 23.0 mi

Top 56%
×5stories
+23ft-63ft

Overall

14810

Males

9718

M50-54

9718

23M→24M

23.0 - 24.0 mi

Top 56%
×6stories
+12ft-82ft

Overall

14838

Males

9679

M50-54

9679

24M→40K

24.0 - 24.9 mi

Top 64%
×1story
+6ft-20ft

Overall

17076

Males

10604

M50-54

10604

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

16101

Males

10145

M50-54

10145

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2stories
+22ft-21ft

Overall

13370

Males

8955

M50-54

8955

Passing Analysis

Category:
Athletes Passed
1753
Passed By
2437
Net Change
-684
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11764
5K → 10K508154+354#11764#11410
10K → 15K33685+251#11410#11159
15K → 20K34030+310#11159#10849
20K → Half4620+26#10849#10823
Half → 25K17268+104#10823#10719
25K → 30K113368-255#10719#10974
30K → 20M48215-167#10974#11141
20M → 21M14464-450#11141#11591
21M → 35K12182-170#11591#11761
35K → 23M47240-193#11761#11954
23M → 24M28182-154#11954#12108
24M → 40K19242-223#12108#12331
40K → 25.2M1294-82#12331#12413
25.2M → Finish5893-35#12413#12448
TOTALS17532437-684
📊

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