Boston Marathon logo
BOSTON MARATHON 2023

Thomas Robey

Bib: 20617•M

CT

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M60-64)
#0 / 1110
Top 47%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:55
Rank: #16425
Start → 5K
8:21/mi
25:55 split
10K· 6.21 mi
52:06
Rank: #17100 (-675)
5K → 10K
8:26/mi
26:11 split
15K· 9.32 mi
1:18:09
Rank: #17094 (+6)
10K → 15K
8:23/mi
26:03 split
20K· 12.43 mi
1:44:43
Rank: #17113 (-19)
15K → 20K
8:33/mi
26:34 split
Half· 13.11 mi
1:50:19
Rank: #17045 (+68)
20K → Half
8:12/mi
5:36 split
25K· 15.53 mi
2:11:07
Rank: #16975 (+70)
Half → 25K
8:35/mi
20:48 split
30K· 18.64 mi
2:38:20
Rank: #16736 (+239)
25K → 30K
8:46/mi
27:13 split
20M
2:50:27
Rank: #16680 (+56)
30K → 20M
8:55/mi
12:07 split
21M
3:00:52
Rank: #16884 (-204)
20M → 21M
10:25/mi
10:25 split
35K· 21.75 mi
3:07:28
Rank: #16879 (+5)
21M → 35K
8:49/mi
6:36 split
23M
3:19:00
Rank: #16893 (-14)
35K → 23M
9:13/mi
11:32 split
24M
3:27:58
Rank: #16902 (-9)
23M → 24M
8:58/mi
8:58 split
40K· 24.85 mi
3:35:46
Rank: #16892 (+10)
24M → 40K
9:07/mi
7:48 split
25.2M
3:39:13
Rank: #16900 (-8)
40K → 25.2M
10:00/mi
3:27 split
Finish· 26.22 mi
3:48:27
Rank: #16971 (-71)
25.2M → Finish
9:04/mi
9:14 split

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
Time1:50:19
Pace8:25 /mi
2nd Half
Distance13.11 mi
Time1:58:08
Pace9:01 /mi
📊Positive Split: 7.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:3425:558:2125:55
8:21
-
10K
6.21 mi11:44:4552:068:2326:11
8:26
+0:05
15K
9.32 mi12:10:481:18:098:2326:03
8:23
-0:03
20K
12.43 mi12:37:221:44:438:2626:34
8:33
+0:10
Half
13.11 mi12:42:581:50:198:255:36
8:12
-0:21
25K
15.53 mi13:03:462:11:078:2620:48
8:35
+0:23
30K
18.64 mi13:30:592:38:208:3027:13
8:46
+0:11
20M
20.00 mi13:43:062:50:278:3112:07
8:55
+0:09
21M
21.00 mi13:53:313:00:528:3710:25
10:25
+1:30
35K
21.75 mi14:00:073:07:288:376:36
8:49
-1:36
23M
23.00 mi14:11:393:19:008:3911:32
9:13
+0:24
24M
24.00 mi14:20:373:27:588:408:58
8:58
-0:15
40K
24.85 mi14:28:253:35:468:417:48
9:07
+0:09
25.2M
25.20 mi14:31:523:39:138:423:27
10:00
+0:53
Finish
26.22 mi14:41:063:48:278:439:14
9:04
-0:56

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

8:12 /mi

Average Pace

8:43 /mi

Slowest Pace

10:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:23:45

37% of race

Time at Steady Pace

1:51:30

49% of race

Time at Slower Pace

33:12

15% of race

Average Pace: 8:43 /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 mi11:18:3425:558:2125:55
8:21
#16425
10K
6.21 mi11:44:4552:068:2326:11
8:26
#17100
15K
9.32 mi12:10:481:18:098:2326:03
8:23
#17094
20K
12.43 mi12:37:221:44:438:2626:34
8:33
#17113
Half
13.11 mi12:42:581:50:198:255:36
8:12
#17045
25K
15.53 mi13:03:462:11:078:2620:48
8:35
#16975
30K
18.64 mi13:30:592:38:208:3027:13
8:46
#16736
20M
20.00 mi13:43:062:50:278:3112:07
8:55
#16680
21M
21.00 mi13:53:313:00:528:3710:25
10:25
#16884
35K
21.75 mi14:00:073:07:288:376:36
8:49
#16879
23M
23.00 mi14:11:393:19:008:3911:32
9:13
#16893
24M
24.00 mi14:20:373:27:588:408:58
8:58
#16902
40K
24.85 mi14:28:253:35:468:417:48
9:07
#16892
25.2M
25.20 mi14:31:523:39:138:423:27
10:00
#16900
Finish
26.22 mi14:41:063:48:278:439:14
9:04
#16971
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi16425108551085517048(Top 64%)11078(Top 73%)11078(Top 998%)
10K6.21 mi3.10 mi17100-67511096-24111096-24117760(Top 67%)11392(Top 75%)11392(Top 1026%)
15K9.32 mi3.11 mi17094+611109-1311109-1317048(Top 64%)11078(Top 73%)11078(Top 998%)
20K12.43 mi3.11 mi17113-1911097+1211097+1217165(Top 64%)11116(Top 73%)11116(Top 1001%)
Half13.11 mi0.68 mi17045+6811067+3011067+3015838(Top 59%)10626(Top 70%)10626(Top 957%)
25K15.53 mi2.42 mi16975+7011026+4111026+4116676(Top 63%)10838(Top 71%)10838(Top 976%)
30K18.64 mi3.11 mi16736+23910897+12910897+12915827(Top 59%)10406(Top 69%)10406(Top 937%)
20M20.00 mi1.36 mi16680+5610861+3610861+3616081(Top 60%)10447(Top 69%)10447(Top 941%)
21M21.00 mi1.00 mi16884-20410947-8610947-8619299(Top 72%)11762(Top 78%)11762(Top 1060%)
35K21.75 mi0.75 mi16879+510938+910938+917023(Top 64%)10715(Top 71%)10715(Top 965%)
23M23.00 mi1.25 mi16893-1410911+2710911+2717099(Top 64%)10734(Top 71%)10734(Top 967%)
24M24.00 mi1.00 mi16902-910899+1210899+1217060(Top 64%)10650(Top 70%)10650(Top 959%)
40K24.85 mi0.85 mi16892+1010875+2410875+2416709(Top 63%)10447(Top 69%)10447(Top 941%)
25.2M25.20 mi0.35 mi16900-810865+1010865+1017352(Top 65%)10705(Top 71%)10705(Top 964%)
Finish26.22 mi1.02 mi16971-7110888-2310888-2318258(Top 69%)11191(Top 74%)11191(Top 1008%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21story building
+97ft-345ft

Overall

17048

Males

11078

M60-64

11078

5K→10K

3.1 - 6.2 mi

Top 67%
×5story building
+79ft-138ft

Overall

17760

Males

11392

M60-64

11392

10K→15K

6.2 - 9.3 mi

Top 64%
×3story building
+67ft-78ft

Overall

17048

Males

11078

M60-64

11078

15K→20K

9.3 - 12.4 mi

Top 64%
×5story building
+106ft-86ft

Overall

17165

Males

11116

M60-64

11116

20K→Half

12.4 - 13.1 mi

Top 59%
×2story building
+19ft-37ft

Overall

15838

Males

10626

M60-64

10626

Half→25K

13.1 - 15.5 mi

Top 63%
×4story building
+66ft-88ft

Overall

16676

Males

10838

M60-64

10838

25K→30K

15.5 - 18.6 mi

Top 59%
×9story building
+181ft-148ft

Overall

15827

Males

10406

M60-64

10406

30K→20M

18.6 - 20.0 mi

Top 60%
×5story building
+64ft-50ft

Overall

16081

Males

10447

M60-64

10447

20M→21M

20.0 - 21.0 mi

Top 72%
×8story building
+106ft-24ft

Overall

19299

Males

11762

M60-64

11762

21M→35K

21.0 - 21.8 mi

Top 64%
×7story building
+17ft-86ft

Overall

17023

Males

10715

M60-64

10715

35K→23M

21.8 - 23.0 mi

Top 64%
×5story building
+23ft-63ft

Overall

17099

Males

10734

M60-64

10734

23M→24M

23.0 - 24.0 mi

Top 64%
×6story building
+12ft-82ft

Overall

17060

Males

10650

M60-64

10650

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

16709

Males

10447

M60-64

10447

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

17352

Males

10705

M60-64

10705

25.2M→Finish

25.2 - 26.2 mi

Top 69%
×2story building
+22ft-21ft

Overall

18258

Males

11191

M60-64

11191

Passing Analysis

Category:
Athletes Passed
1428
Passed By
1974
Net Change
-546
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16425
5K → 10K98773-675#16425#17100
10K → 15K193187+6#17100#17094
15K → 20K174193-19#17094#17113
20K → Half746+68#17113#17045
Half → 25K14575+70#17045#16975
25K → 30K29152+239#16975#16736
30K → 20M11054+56#16736#16680
20M → 21M28232-204#16680#16884
21M → 35K4843+5#16884#16879
35K → 23M8094-14#16879#16893
23M → 24M5766-9#16893#16902
24M → 40K6454+10#16902#16892
40K → 25.2M2836-8#16892#16900
25.2M → Finish38109-71#16900#16971
TOTALS14281974-546
📊

Passing Visuals

Category:
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