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BOSTON MARATHON 2023

David Dixon

Bib: 4460•M

NY

Masters
Boston Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 26622
Top 14%
Gender (Male)
#0 / 15176
Top 23%
Masters (Masters Men)
#0 / 9891
Top 10%
Age Group (M40-44)
#0 / 2241
Top 26%
Race Day Weather
49°/39°F
light intensity drizzle

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
20:28
Rank: #2781
Start → 5K
20:28 | 6:35/mi
10K· 6.21 mi
40:50
Rank: #2954 (-173)
5K → 10K
20:22 | 6:33/mi
15K· 9.32 mi
1:02:06
Rank: #3650 (-696)
10K → 15K
21:16 | 6:51/mi
20K· 12.43 mi
1:24:23
Rank: #4734 (-1084)
15K → 20K
22:17 | 7:10/mi
Half· 13.11 mi
1:28:59
Rank: #4730 (+4)
20K → Half
4:36 | 6:45/mi
25K· 15.53 mi
1:45:37
Rank: #4684 (+46)
Half → 25K
16:38 | 6:52/mi
30K· 18.64 mi
2:07:22
Rank: #4601 (+83)
25K → 30K
21:45 | 7:00/mi
20M
2:16:41
Rank: #4457 (+144)
30K → 20M
9:19 | 6:51/mi
21M
2:24:00
Rank: #4377 (+80)
20M → 21M
7:19 | 7:19/mi
35K· 21.75 mi
2:28:53
Rank: #4263 (+114)
21M → 35K
4:53 | 6:32/mi
23M
2:37:26
Rank: #4153 (+110)
35K → 23M
8:33 | 6:50/mi
24M
2:43:52
Rank: #3981 (+172)
23M → 24M
6:26 | 6:26/mi
40K· 24.85 mi
2:49:43
Rank: #3925 (+56)
24M → 40K
5:51 | 6:51/mi
25.2M
2:52:13
Rank: #3885 (+40)
40K → 25.2M
2:30 | 7:15/mi
Finish· 26.22 mi
2:58:45
Rank: #3761 (+124)
25.2M → Finish
6:32 | 6:25/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half⚖️ Balanced
via Half
Distance13.11 mi
Time1:28:59
Pace6:47 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:29:46
Pace6:51 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:2620:286:3520:28
6:35
-
10K
6.21 mi10:42:4840:506:3420:22
6:33
-0:02
15K
9.32 mi11:04:041:02:066:4021:16
6:51
+0:18
20K
12.43 mi11:26:211:24:236:4722:17
7:10
+0:19
Half
13.11 mi11:30:571:28:596:474:36
6:45
-0:25
25K
15.53 mi11:47:351:45:376:4816:38
6:52
+0:07
30K
18.64 mi12:09:202:07:226:5021:45
7:00
+0:08
20M
20.00 mi12:18:392:16:416:509:19
6:51
-0:09
21M
21.00 mi12:25:582:24:006:517:19
7:19
+0:28
35K
21.75 mi12:30:512:28:536:514:53
6:32
-0:47
23M
23.00 mi12:39:242:37:266:518:33
6:50
+0:18
24M
24.00 mi12:45:502:43:526:506:26
6:26
-0:24
40K
24.85 mi12:51:412:49:436:505:51
6:51
+0:25
25.2M
25.20 mi12:54:112:52:136:502:30
7:15
+0:24
Finish
26.22 mi13:00:432:58:456:496:32
6:25
-0:50

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

6:25 /mi

Average Pace

6:49 /mi

Slowest Pace

7:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:26:39

82% of race

Time at Steady Pace

32:06

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:49 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:22:2620:286:3520:28
6:35
#2781
10K
6.21 mi10:42:4840:506:3420:22
6:33
#2954
15K
9.32 mi11:04:041:02:066:4021:16
6:51
#3650
20K
12.43 mi11:26:211:24:236:4722:17
7:10
#4734
Half
13.11 mi11:30:571:28:596:474:36
6:45
#4730
25K
15.53 mi11:47:351:45:376:4816:38
6:52
#4684
30K
18.64 mi12:09:202:07:226:5021:45
7:00
#4601
20M
20.00 mi12:18:392:16:416:509:19
6:51
#4457
21M
21.00 mi12:25:582:24:006:517:19
7:19
#4377
35K
21.75 mi12:30:512:28:536:514:53
6:32
#4263
23M
23.00 mi12:39:242:37:266:518:33
6:50
#4153
24M
24.00 mi12:45:502:43:526:506:26
6:26
#3981
40K
24.85 mi12:51:412:49:436:505:51
6:51
#3925
25.2M
25.20 mi12:54:112:52:136:502:30
7:15
#3885
Finish
26.22 mi13:00:432:58:456:496:32
6:25
#3761
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi2781264626465499(Top 21%)5062(Top 33%)5062(Top 226%)
10K6.21 mi3.10 mi2954-1732818-1722818-1723170(Top 12%)3022(Top 20%)3022(Top 135%)
15K9.32 mi3.11 mi3650-6963448-6303448-6305499(Top 21%)5062(Top 33%)5062(Top 226%)
20K12.43 mi3.11 mi4734-10844415-9674415-9676909(Top 26%)6140(Top 40%)6140(Top 274%)
Half13.11 mi0.68 mi4730+44408+74408+74674(Top 18%)4336(Top 29%)4336(Top 193%)
25K15.53 mi2.42 mi4684+464363+454363+454640(Top 17%)4315(Top 28%)4315(Top 193%)
30K18.64 mi3.11 mi4601+834290+734290+734334(Top 16%)4026(Top 27%)4026(Top 180%)
20M20.00 mi1.36 mi4457+1444160+1304160+1303173(Top 12%)2979(Top 20%)2979(Top 133%)
21M21.00 mi1.00 mi4377+804089+714089+713691(Top 14%)3422(Top 23%)3422(Top 153%)
35K21.75 mi0.75 mi4263+1143988+1013988+1012606(Top 10%)2465(Top 16%)2465(Top 110%)
23M23.00 mi1.25 mi4153+1103888+1003888+1002835(Top 11%)2651(Top 17%)2651(Top 118%)
24M24.00 mi1.00 mi3981+1723728+1603728+1601840(Top 7%)1736(Top 11%)1736(Top 77%)
40K24.85 mi0.85 mi3925+563675+533675+533032(Top 11%)2790(Top 18%)2790(Top 124%)
25.2M25.20 mi0.35 mi3885+403644+313644+312736(Top 10%)2522(Top 17%)2522(Top 113%)
Finish26.22 mi1.02 mi3761+1243532+1123532+1122073(Top 8%)1928(Top 13%)1928(Top 86%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 21%
×21stories
+97ft-345ft

Overall

5499

Males

5062

M40-44

5062

5K→10K

3.1 - 6.2 mi

Top 12%
×5stories
+79ft-138ft

Overall

3170

Males

3022

M40-44

3022

10K→15K

6.2 - 9.3 mi

Top 21%
×3stories
+67ft-78ft

Overall

5499

Males

5062

M40-44

5062

15K→20K

9.3 - 12.4 mi

Top 26%
×5stories
+106ft-86ft

Overall

6909

Males

6140

M40-44

6140

20K→Half

12.4 - 13.1 mi

Top 18%
×2stories
+19ft-37ft

Overall

4674

Males

4336

M40-44

4336

Half→25K

13.1 - 15.5 mi

Top 17%
×4stories
+66ft-88ft

Overall

4640

Males

4315

M40-44

4315

25K→30K

15.5 - 18.6 mi

Top 16%
×9stories
+181ft-148ft

Overall

4334

Males

4026

M40-44

4026

30K→20M

18.6 - 20.0 mi

Top 12%
×5stories
+64ft-50ft

Overall

3173

Males

2979

M40-44

2979

20M→21M

20.0 - 21.0 mi

Top 14%
×8stories
+106ft-24ft

Overall

3691

Males

3422

M40-44

3422

21M→35K

21.0 - 21.8 mi

Top 10%
×7stories
+17ft-86ft

Overall

2606

Males

2465

M40-44

2465

35K→23M

21.8 - 23.0 mi

Top 11%
×5stories
+23ft-63ft

Overall

2835

Males

2651

M40-44

2651

23M→24M

23.0 - 24.0 mi

Top 7%
×6stories
+12ft-82ft

Overall

1840

Males

1736

M40-44

1736

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

3032

Males

2790

M40-44

2790

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2736

Males

2522

M40-44

2522

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2stories
+22ft-21ft

Overall

2073

Males

1928

M40-44

1928

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1333
Passed By
2313
Net Change
-980
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2781
5K → 10K92265-173#2781#2954
10K → 15K5701-696#2954#3650
15K → 20K31087-1084#3650#4734
20K → Half2622+4#4734#4730
Half → 25K12377+46#4730#4684
25K → 30K16683+83#4684#4601
30K → 20M1506+144#4601#4457
20M → 21M10323+80#4457#4377
21M → 35K1162+114#4377#4263
35K → 23M12212+110#4263#4153
23M → 24M1742+172#4153#3981
24M → 40K7519+56#3981#3925
40K → 25.2M488+40#3925#3885
25.2M → Finish1306+124#3885#3761
TOTALS13332313-980
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing