Boston Marathon logo
BOSTON MARATHON 2023

Rob Wilcox

Bib: 17041•M

UT

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:57/mi
27:49
↑ 97↓ 3451.5%
10K· 6.21 mi
9:01/mi
55:49
↑ 79↓ 1380.4%
15K· 9.32 mi
9:11/mi
1:24:20
↑ 67↓ 78
20K· 12.43 mi
9:26/mi
1:53:39
↑ 106↓ 860.1%
Half· 13.11 mi
9:24/mi
2:00:04
↑ 19↓ 370.5%
25K· 15.53 mi
9:45/mi
2:23:42
↑ 66↓ 880.2%
30K· 18.64 mi
10:22/mi
2:55:56
↑ 181↓ 1480.2%
20M
10:34/mi
3:10:17
↑ 64↓ 500.2%
21M
11:00/mi
3:21:17
↑ 106↓ 241.6%
35K· 21.75 mi
10:03/mi
3:28:48
↑ 17↓ 861.7%
23M
10:31/mi
3:41:58
↑ 23↓ 630.6%
24M
10:01/mi
3:51:59
↓ 821.3%
40K· 24.85 mi
10:01/mi
4:00:33
↓ 200.3%
25.2M
10:32/mi
4:04:11
↑ 13↓ 160.2%
Finish· 26.22 mi
9:42/mi
4:14:04
↑ 22↓ 21

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
Time2:00:04
Pace9:10 /mi
2nd Half
Distance13.11 mi
Time2:14:00
Pace10:13 /mi
📊Positive Split: 11.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:25:1027:498:5727:49
8:57
-
10K
6.21 mi11:53:1055:498:5928:00
9:01
+0:04
15K
9.32 mi12:21:411:24:209:0328:31
9:11
+0:10
20K
12.43 mi12:51:001:53:399:0929:19
9:26
+0:15
Half
13.11 mi12:57:252:00:049:106:25
9:24
-0:02
25K
15.53 mi13:21:032:23:429:1523:38
9:45
+0:21
30K
18.64 mi13:53:172:55:569:2632:14
10:22
+0:37
20M
20.00 mi14:07:383:10:179:3114:21
10:34
+0:12
21M
21.00 mi14:18:383:21:179:3511:00
11:00
+0:26
35K
21.75 mi14:26:093:28:489:367:31
10:03
-0:57
23M
23.00 mi14:39:193:41:589:3913:10
10:31
+0:28
24M
24.00 mi14:49:203:51:599:4010:01
10:01
-0:30
40K
24.85 mi14:57:544:00:339:418:34
10:01
0:00
25.2M
25.20 mi15:01:324:04:119:413:38
10:32
+0:31
Finish
26.22 mi15:11:254:14:049:429:53
9:42
-0:50

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

8:57 /mi

Average Pace

9:42 /mi

Slowest Pace

11:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:09:57

51% of race

Time at Steady Pace

49:44

20% of race

Time at Slower Pace

1:14:23

29% of race

Average Pace: 9:41 /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 mi11:25:1027:498:5727:49
8:57
#20231
10K
6.21 mi11:53:1055:498:5928:00
9:01
#20579
15K
9.32 mi12:21:411:24:209:0328:31
9:11
#20788
20K
12.43 mi12:51:001:53:399:0929:19
9:26
#20969
Half
13.11 mi12:57:252:00:049:106:25
9:24
#21031
25K
15.53 mi13:21:032:23:429:1523:38
9:45
#21124
30K
18.64 mi13:53:172:55:569:2632:14
10:22
#21285
20M
20.00 mi14:07:383:10:179:3114:21
10:34
#21327
21M
21.00 mi14:18:383:21:179:3511:00
11:00
#21296
35K
21.75 mi14:26:093:28:489:367:31
10:03
#21297
23M
23.00 mi14:39:193:41:589:3913:10
10:31
#21294
24M
24.00 mi14:49:203:51:599:4010:01
10:01
#21266
40K
24.85 mi14:57:544:00:339:418:34
10:01
#21205
25.2M
25.20 mi15:01:324:04:119:413:38
10:32
#21177
Finish
26.22 mi15:11:254:14:049:429:53
9:42
#21161
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi20231122541225421228(Top 80%)12850(Top 85%)12850(Top 904%)
10K6.21 mi3.10 mi20579-34812481-22712481-22720922(Top 79%)12685(Top 84%)12685(Top 892%)
15K9.32 mi3.11 mi20788-20912598-11712598-11721228(Top 80%)12850(Top 85%)12850(Top 904%)
20K12.43 mi3.11 mi20969-18112696-9812696-9821340(Top 80%)12892(Top 85%)12892(Top 907%)
Half13.11 mi0.68 mi21031-6212724-2812724-2821808(Top 82%)13090(Top 86%)13090(Top 921%)
25K15.53 mi2.42 mi21124-9312763-3912763-3921596(Top 81%)12959(Top 85%)12959(Top 911%)
30K18.64 mi3.11 mi21285-16112823-6012823-6021939(Top 82%)13043(Top 86%)13043(Top 917%)
20M20.00 mi1.36 mi21327-4212825-212825-221864(Top 82%)12939(Top 85%)12939(Top 910%)
21M21.00 mi1.00 mi21296+3112799+2612799+2620825(Top 78%)12439(Top 82%)12439(Top 875%)
35K21.75 mi0.75 mi21297-112797+212797+221394(Top 80%)12663(Top 83%)12663(Top 891%)
23M23.00 mi1.25 mi21294+312777+2012777+2021345(Top 80%)12616(Top 83%)12616(Top 887%)
24M24.00 mi1.00 mi21266+2812756+2112756+2120818(Top 78%)12356(Top 81%)12356(Top 869%)
40K24.85 mi0.85 mi21205+6112717+3912717+3920012(Top 75%)11926(Top 79%)11926(Top 839%)
25.2M25.20 mi0.35 mi21177+2812703+1412703+1419201(Top 72%)11573(Top 76%)11573(Top 814%)
Finish26.22 mi1.02 mi21161+1612681+2212681+2220778(Top 78%)12307(Top 81%)12307(Top 865%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21story building
+97ft-345ft

Overall

21228

Males

12850

M55-59

12850

5K→10K

3.1 - 6.2 mi

Top 79%
×5story building
+79ft-138ft

Overall

20922

Males

12685

M55-59

12685

10K→15K

6.2 - 9.3 mi

Top 80%
×3story building
+67ft-78ft

Overall

21228

Males

12850

M55-59

12850

15K→20K

9.3 - 12.4 mi

Top 80%
×5story building
+106ft-86ft

Overall

21340

Males

12892

M55-59

12892

20K→Half

12.4 - 13.1 mi

Top 82%
×2story building
+19ft-37ft

Overall

21808

Males

13090

M55-59

13090

Half→25K

13.1 - 15.5 mi

Top 81%
×4story building
+66ft-88ft

Overall

21596

Males

12959

M55-59

12959

25K→30K

15.5 - 18.6 mi

Top 82%
×9story building
+181ft-148ft

Overall

21939

Males

13043

M55-59

13043

30K→20M

18.6 - 20.0 mi

Top 82%
×5story building
+64ft-50ft

Overall

21864

Males

12939

M55-59

12939

20M→21M

20.0 - 21.0 mi

Top 78%
×8story building
+106ft-24ft

Overall

20825

Males

12439

M55-59

12439

21M→35K

21.0 - 21.8 mi

Top 80%
×7story building
+17ft-86ft

Overall

21394

Males

12663

M55-59

12663

35K→23M

21.8 - 23.0 mi

Top 80%
×5story building
+23ft-63ft

Overall

21345

Males

12616

M55-59

12616

23M→24M

23.0 - 24.0 mi

Top 78%
×6story building
+12ft-82ft

Overall

20818

Males

12356

M55-59

12356

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

20012

Males

11926

M55-59

11926

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1story
+13ft-16ft

Overall

19201

Males

11573

M55-59

11573

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2story building
+22ft-21ft

Overall

20778

Males

12307

M55-59

12307

Passing Analysis

Category:
Athletes Passed
962
Passed By
1892
Net Change
-930
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20231
5K → 10K153501-348#20231#20579
10K → 15K97306-209#20579#20788
15K → 20K100281-181#20788#20969
20K → Half1375-62#20969#21031
Half → 25K67160-93#21031#21124
25K → 30K77238-161#21124#21285
30K → 20M62104-42#21285#21327
20M → 21M7948+31#21327#21296
21M → 35K3031-1#21296#21297
35K → 23M6865+3#21297#21294
23M → 24M5527+28#21294#21266
24M → 40K8221+61#21266#21205
40K → 25.2M346+28#21205#21177
25.2M → Finish4529+16#21177#21161
TOTALS9621892-930
📊

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

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing