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BOSTON MARATHON 2023

Mark Tsombakos

Bib: 30257•M

MA

0:00
0:00
/ mi
Masters
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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
10:46/mi
33:26
↑ 97↓ 3451.5%
10K· 6.21 mi
10:47/mi
1:06:55
↑ 79↓ 1380.4%
15K· 9.32 mi
10:22/mi
1:39:09
↑ 67↓ 78
20K· 12.43 mi
10:48/mi
2:12:43
↑ 106↓ 860.1%
Half· 13.11 mi
10:11/mi
2:19:40
↑ 19↓ 370.5%
25K· 15.53 mi
10:55/mi
2:46:07
↑ 66↓ 880.2%
30K· 18.64 mi
11:28/mi
3:21:45
↑ 181↓ 1480.2%
20M
12:21/mi
3:38:32
↑ 64↓ 500.2%
21M
12:45/mi
3:51:17
↑ 106↓ 241.6%
35K· 21.75 mi
12:23/mi
4:00:33
↑ 17↓ 861.7%
23M
15:38/mi
4:20:07
↑ 23↓ 630.6%
24M
13:27/mi
4:33:34
↓ 821.3%
40K· 24.85 mi
15:11/mi
4:46:33
↓ 200.3%
25.2M
13:58/mi
4:51:22
↑ 13↓ 160.2%
Finish· 26.22 mi
11:59/mi
5:03:35
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:19:40
Pace10:39 /mi
2nd Half
Distance13.11 mi
Time2:43:55
Pace12:30 /mi
📊Positive Split: 17.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:56:1133:2610:4633:26
10:46
-
10K
6.21 mi12:29:401:06:5510:4633:29
10:47
+0:01
15K
9.32 mi13:01:541:39:0910:3832:14
10:22
-0:25
20K
12.43 mi13:35:282:12:4310:4133:34
10:48
+0:26
Half
13.11 mi13:42:252:19:4010:396:57
10:11
-0:37
25K
15.53 mi14:08:522:46:0710:4226:27
10:55
+0:44
30K
18.64 mi14:44:303:21:4510:4935:38
11:28
+0:33
20M
20.00 mi15:01:173:38:3210:5616:47
12:21
+0:53
21M
21.00 mi15:14:023:51:1711:0112:45
12:45
+0:24
35K
21.75 mi15:23:184:00:3311:049:16
12:23
-0:22
23M
23.00 mi15:42:524:20:0711:1919:34
15:38
+3:15
24M
24.00 mi15:56:194:33:3411:2413:27
13:27
-2:11
40K
24.85 mi16:09:184:46:3311:3212:59
15:11
+1:44
25.2M
25.20 mi16:14:074:51:2211:344:49
13:58
-1:13
Finish
26.22 mi16:26:205:03:3511:3512:13
11:59
-1:59

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

10:11 /mi

Average Pace

11:35 /mi

Slowest Pace

15:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:46:07

55% of race

Time at Steady Pace

1:26:39

29% of race

Time at Slower Pace

50:49

17% of race

Average Pace: 11:35 /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 mi11:56:1133:2610:4633:26
10:46
#25298
10K
6.21 mi12:29:401:06:5510:4633:29
10:47
#25203
15K
9.32 mi13:01:541:39:0910:3832:14
10:22
#24871
20K
12.43 mi13:35:282:12:4310:4133:34
10:48
#24722
Half
13.11 mi13:42:252:19:4010:396:57
10:11
#24679
25K
15.53 mi14:08:522:46:0710:4226:27
10:55
#24550
30K
18.64 mi14:44:303:21:4510:4935:38
11:28
#24398
20M
20.00 mi15:01:173:38:3210:5616:47
12:21
#24417
21M
21.00 mi15:14:023:51:1711:0112:45
12:45
#24386
35K
21.75 mi15:23:184:00:3311:049:16
12:23
#24418
23M
23.00 mi15:42:524:20:0711:1919:34
15:38
#24725
24M
24.00 mi15:56:194:33:3411:2413:27
13:27
#24817
40K
24.85 mi16:09:184:46:3311:3212:59
15:11
#24951
25.2M
25.20 mi16:14:074:51:2211:344:49
13:58
#24968
Finish
26.22 mi16:26:205:03:3511:3512:13
11:59
#24979
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi25298146671466724231(Top 91%)14190(Top 94%)14190(Top 998%)
10K6.21 mi3.10 mi25203+9514636+3114636+3125133(Top 94%)14597(Top 96%)14597(Top 1027%)
15K9.32 mi3.11 mi24871+33214480+15614480+15624231(Top 91%)14190(Top 94%)14190(Top 998%)
20K12.43 mi3.11 mi24722+14914396+8414396+8424328(Top 91%)14201(Top 94%)14201(Top 999%)
Half13.11 mi0.68 mi24679+4314377+1914377+1923643(Top 89%)13921(Top 92%)13921(Top 979%)
25K15.53 mi2.42 mi24550+12914312+6514312+6523828(Top 90%)13944(Top 92%)13944(Top 981%)
30K18.64 mi3.11 mi24398+15214228+8414228+8423811(Top 89%)13885(Top 91%)13885(Top 976%)
20M20.00 mi1.36 mi24417-1914230-214230-224589(Top 92%)14181(Top 93%)14181(Top 997%)
21M21.00 mi1.00 mi24386+3114207+2314207+2323759(Top 89%)13780(Top 91%)13780(Top 969%)
35K21.75 mi0.75 mi24418-3214216-914216-925059(Top 94%)14352(Top 95%)14352(Top 1009%)
23M23.00 mi1.25 mi24725-30714343-12714343-12726432(Top 99%)15068(Top 99%)15068(Top 1060%)
24M24.00 mi1.00 mi24817-9214371-2814371-2825771(Top 97%)14689(Top 97%)14689(Top 1033%)
40K24.85 mi0.85 mi24951-13414425-5414425-5426219(Top 98%)14924(Top 98%)14924(Top 1050%)
25.2M25.20 mi0.35 mi24968-1714432-714432-724975(Top 94%)14269(Top 94%)14269(Top 1003%)
Finish26.22 mi1.02 mi24979-1114430+214430+225219(Top 95%)14416(Top 95%)14416(Top 1014%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 91%
×21story building
+97ft-345ft

Overall

24231

Males

14190

M55-59

14190

5K→10K

3.1 - 6.2 mi

Top 94%
×5story building
+79ft-138ft

Overall

25133

Males

14597

M55-59

14597

10K→15K

6.2 - 9.3 mi

Top 91%
×3story building
+67ft-78ft

Overall

24231

Males

14190

M55-59

14190

15K→20K

9.3 - 12.4 mi

Top 91%
×5story building
+106ft-86ft

Overall

24328

Males

14201

M55-59

14201

20K→Half

12.4 - 13.1 mi

Top 89%
×2story building
+19ft-37ft

Overall

23643

Males

13921

M55-59

13921

Half→25K

13.1 - 15.5 mi

Top 90%
×4story building
+66ft-88ft

Overall

23828

Males

13944

M55-59

13944

25K→30K

15.5 - 18.6 mi

Top 89%
×9story building
+181ft-148ft

Overall

23811

Males

13885

M55-59

13885

30K→20M

18.6 - 20.0 mi

Top 92%
×5story building
+64ft-50ft

Overall

24589

Males

14181

M55-59

14181

20M→21M

20.0 - 21.0 mi

Top 89%
×8story building
+106ft-24ft

Overall

23759

Males

13780

M55-59

13780

21M→35K

21.0 - 21.8 mi

Top 94%
×7story building
+17ft-86ft

Overall

25059

Males

14352

M55-59

14352

35K→23M

21.8 - 23.0 mi

Top 99%
×5story building
+23ft-63ft

Overall

26432

Males

15068

M55-59

15068

23M→24M

23.0 - 24.0 mi

Top 97%
×6story building
+12ft-82ft

Overall

25771

Males

14689

M55-59

14689

24M→40K

24.0 - 24.9 mi

Top 98%
×1story
+6ft-20ft

Overall

26219

Males

14924

M55-59

14924

40K→25.2M

24.9 - 25.2 mi

Top 94%
×1story
+13ft-16ft

Overall

24975

Males

14269

M55-59

14269

25.2M→Finish

25.2 - 26.2 mi

Top 95%
×2story building
+22ft-21ft

Overall

25219

Males

14416

M55-59

14416

Passing Analysis

Category:
Athletes Passed
1262
Passed By
943
Net Change
+319
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25298
5K → 10K212117+95#25298#25203
10K → 15K34311+332#25203#24871
15K → 20K18536+149#24871#24722
20K → Half441+43#24722#24679
Half → 25K14213+129#24679#24550
25K → 30K19240+152#24550#24398
30K → 20M3958-19#24398#24417
20M → 21M5827+31#24417#24386
21M → 35K2052-32#24386#24418
35K → 23M2309-307#24418#24725
23M → 24M496-92#24725#24817
24M → 40K4138-134#24817#24951
40K → 25.2M320-17#24951#24968
25.2M → Finish1425-11#24968#24979
TOTALS1262943+319
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing