Boston Marathon logo
BOSTON MARATHON 2023

Tom Anasson

Bib: 30788•M

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Gender (Male)
#0 / 15176
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
29:40
Rank: #22231
Start → 5K
29:40 | 9:33/mi
10K· 6.21 mi
1:00:05
Rank: #22804 (-573)
5K → 10K
30:25 | 9:47/mi
15K· 9.32 mi
1:30:10
Rank: #22796 (+8)
10K → 15K
30:05 | 9:41/mi
20K· 12.43 mi
2:01:37
Rank: #22898 (-102)
15K → 20K
31:27 | 10:07/mi
Half· 13.11 mi
2:08:11
Rank: #22866 (+32)
20K → Half
6:34 | 9:37/mi
25K· 15.53 mi
2:34:04
Rank: #22992 (-126)
Half → 25K
25:53 | 10:41/mi
30K· 18.64 mi
3:07:48
Rank: #22974 (+18)
25K → 30K
33:44 | 10:51/mi
20M
3:22:42
Rank: #22938 (+36)
30K → 20M
14:54 | 10:58/mi
21M
3:34:58
Rank: #22962 (-24)
20M → 21M
12:16 | 12:16/mi
35K· 21.75 mi
3:42:59
Rank: #22946 (+16)
21M → 35K
8:01 | 10:43/mi
23M
3:56:41
Rank: #22900 (+46)
35K → 23M
13:42 | 10:57/mi
24M
4:07:42
Rank: #22890 (+10)
23M → 24M
11:01 | 11:01/mi
40K· 24.85 mi
4:17:33
Rank: #22914 (-24)
24M → 40K
9:51 | 11:31/mi
25.2M
4:21:38
Rank: #22904 (+10)
40K → 25.2M
4:05 | 11:50/mi
Finish· 26.22 mi
4:33:12
Rank: #22979 (-75)
25.2M → Finish
11:34 | 11:21/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
Time2:08:11
Pace9:47 /mi
2nd Half
Distance13.11 mi
Time2:25:01
Pace11:04 /mi
📊Positive Split: 13.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:0329:409:3329:40
9:33
-
10K
6.21 mi12:18:281:00:059:4030:25
9:47
+0:14
15K
9.32 mi12:48:331:30:109:4030:05
9:41
-0:06
20K
12.43 mi13:20:002:01:379:4731:27
10:07
+0:26
Half
13.11 mi13:26:342:08:119:476:34
9:37
-0:30
25K
15.53 mi13:52:272:34:049:5525:53
10:41
+1:04
30K
18.64 mi14:26:113:07:4810:0433:44
10:51
+0:10
20M
20.00 mi14:41:053:22:4210:0814:54
10:58
+0:07
21M
21.00 mi14:53:213:34:5810:1412:16
12:16
+1:18
35K
21.75 mi15:01:223:42:5910:158:01
10:43
-1:33
23M
23.00 mi15:15:043:56:4110:1713:42
10:57
+0:14
24M
24.00 mi15:26:054:07:4210:1911:01
11:01
+0:04
40K
24.85 mi15:35:564:17:3310:229:51
11:31
+0:30
25.2M
25.20 mi15:40:014:21:3810:234:05
11:50
+0:19
Finish
26.22 mi15:51:354:33:1210:2611:34
11:21
-0:29

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

9:33 /mi

Average Pace

10:26 /mi

Slowest Pace

12:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:08:11

47% of race

Time at Steady Pace

1:47:15

39% of race

Time at Slower Pace

37:46

14% of race

Average Pace: 10:25 /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 mi11:48:0329:409:3329:40
9:33
#22231
10K
6.21 mi12:18:281:00:059:4030:25
9:47
#22804
15K
9.32 mi12:48:331:30:109:4030:05
9:41
#22796
20K
12.43 mi13:20:002:01:379:4731:27
10:07
#22898
Half
13.11 mi13:26:342:08:119:476:34
9:37
#22866
25K
15.53 mi13:52:272:34:049:5525:53
10:41
#22992
30K
18.64 mi14:26:113:07:4810:0433:44
10:51
#22974
20M
20.00 mi14:41:053:22:4210:0814:54
10:58
#22938
21M
21.00 mi14:53:213:34:5810:1412:16
12:16
#22962
35K
21.75 mi15:01:223:42:5910:158:01
10:43
#22946
23M
23.00 mi15:15:043:56:4110:1713:42
10:57
#22900
24M
24.00 mi15:26:054:07:4210:1911:01
11:01
#22890
40K
24.85 mi15:35:564:17:3310:229:51
11:31
#22914
25.2M
25.20 mi15:40:014:21:3810:234:05
11:50
#22904
Finish
26.22 mi15:51:354:33:1210:2611:34
11:21
#22979
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi22231132171321722758(Top 85%)13524(Top 89%)13524(Top 256%)
10K6.21 mi3.10 mi22804-57313526-30913526-30923250(Top 87%)13750(Top 91%)13750(Top 260%)
15K9.32 mi3.11 mi22796+813543-1713543-1722758(Top 85%)13524(Top 89%)13524(Top 256%)
20K12.43 mi3.11 mi22898-10213583-4013583-4023147(Top 87%)13699(Top 90%)13699(Top 259%)
Half13.11 mi0.68 mi22866+3213569+1413569+1422446(Top 84%)13387(Top 88%)13387(Top 253%)
25K15.53 mi2.42 mi22992-12613614-4513614-4523472(Top 88%)13796(Top 91%)13796(Top 261%)
30K18.64 mi3.11 mi22974+1813583+3113583+3122888(Top 86%)13465(Top 89%)13465(Top 255%)
20M20.00 mi1.36 mi22938+3613550+3313550+3322639(Top 85%)13293(Top 88%)13293(Top 252%)
21M21.00 mi1.00 mi22962-2413552-213552-223143(Top 87%)13503(Top 89%)13503(Top 255%)
35K21.75 mi0.75 mi22946+1613540+1213540+1222767(Top 86%)13281(Top 88%)13281(Top 251%)
23M23.00 mi1.25 mi22900+4613502+3813502+3822228(Top 83%)13026(Top 86%)13026(Top 246%)
24M24.00 mi1.00 mi22890+1013491+1113491+1123081(Top 87%)13385(Top 88%)13385(Top 253%)
40K24.85 mi0.85 mi22914-2413492-113492-123227(Top 87%)13420(Top 88%)13420(Top 254%)
25.2M25.20 mi0.35 mi22904+1013488+413488+422209(Top 83%)12950(Top 85%)12950(Top 245%)
Finish26.22 mi1.02 mi22979-7513520-3213520-3224485(Top 92%)14065(Top 93%)14065(Top 266%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21stories
+97ft-345ft

Overall

22758

Males

13524

M18-39

13524

5K→10K

3.1 - 6.2 mi

Top 87%
×5stories
+79ft-138ft

Overall

23250

Males

13750

M18-39

13750

10K→15K

6.2 - 9.3 mi

Top 85%
×3stories
+67ft-78ft

Overall

22758

Males

13524

M18-39

13524

15K→20K

9.3 - 12.4 mi

Top 87%
×5stories
+106ft-86ft

Overall

23147

Males

13699

M18-39

13699

20K→Half

12.4 - 13.1 mi

Top 84%
×2stories
+19ft-37ft

Overall

22446

Males

13387

M18-39

13387

Half→25K

13.1 - 15.5 mi

Top 88%
×4stories
+66ft-88ft

Overall

23472

Males

13796

M18-39

13796

25K→30K

15.5 - 18.6 mi

Top 86%
×9stories
+181ft-148ft

Overall

22888

Males

13465

M18-39

13465

30K→20M

18.6 - 20.0 mi

Top 85%
×5stories
+64ft-50ft

Overall

22639

Males

13293

M18-39

13293

20M→21M

20.0 - 21.0 mi

Top 87%
×8stories
+106ft-24ft

Overall

23143

Males

13503

M18-39

13503

21M→35K

21.0 - 21.8 mi

Top 86%
×7stories
+17ft-86ft

Overall

22767

Males

13281

M18-39

13281

35K→23M

21.8 - 23.0 mi

Top 83%
×5stories
+23ft-63ft

Overall

22228

Males

13026

M18-39

13026

23M→24M

23.0 - 24.0 mi

Top 87%
×6stories
+12ft-82ft

Overall

23081

Males

13385

M18-39

13385

24M→40K

24.0 - 24.9 mi

Top 87%
×1story
+6ft-20ft

Overall

23227

Males

13420

M18-39

13420

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1story
+13ft-16ft

Overall

22209

Males

12950

M18-39

12950

25.2M→Finish

25.2 - 26.2 mi

Top 92%
×2stories
+22ft-21ft

Overall

24485

Males

14065

M18-39

14065

Passing Analysis

Category:
Athletes Passed
882
Passed By
1630
Net Change
-748
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22231
5K → 10K59632-573#22231#22804
10K → 15K151143+8#22804#22796
15K → 20K101203-102#22796#22898
20K → Half4311+32#22898#22866
Half → 25K61187-126#22866#22992
25K → 30K128110+18#22992#22974
30K → 20M7741+36#22974#22938
20M → 21M4367-24#22938#22962
21M → 35K3923+16#22962#22946
35K → 23M7125+46#22946#22900
23M → 24M4232+10#22900#22890
24M → 40K3357-24#22890#22914
40K → 25.2M2010+10#22914#22904
25.2M → Finish1489-75#22904#22979
TOTALS8821630-748
📊

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