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BOSTON MARATHON 2023

Tomasz Glów

Bib: 9453•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 25%
Gender (Male)
#0 / 15176
Top 39%
Masters (Masters Men)
#0 / 9891
Top 25%
Division (M50-54)
#0 / 2052
Top 20%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:42
Rank: #3351
Start → 5K
20:42 | 6:40/mi
10K· 6.21 mi
41:36
Rank: #3934 (-583)
5K → 10K
20:54 | 6:44/mi
15K· 9.32 mi
1:02:39
Rank: #4239 (-305)
10K → 15K
21:03 | 6:47/mi
20K· 12.43 mi
1:24:21
Rank: #4715 (-476)
15K → 20K
21:42 | 6:59/mi
Half· 13.11 mi
1:29:10
Rank: #4883 (-168)
20K → Half
4:49 | 7:04/mi
25K· 15.53 mi
1:47:05
Rank: #5540 (-657)
Half → 25K
17:55 | 7:23/mi
30K· 18.64 mi
2:11:28
Rank: #6147 (-607)
25K → 30K
24:23 | 7:51/mi
20M
2:22:18
Rank: #6321 (-174)
30K → 20M
10:50 | 7:58/mi
21M
2:30:53
Rank: #6490 (-169)
20M → 21M
8:35 | 8:35/mi
35K· 21.75 mi
2:36:31
Rank: #6526 (-36)
21M → 35K
5:38 | 7:32/mi
23M
2:46:19
Rank: #6589 (-63)
35K → 23M
9:48 | 7:50/mi
24M
2:53:58
Rank: #6620 (-31)
23M → 24M
7:39 | 7:39/mi
40K· 24.85 mi
3:00:34
Rank: #6621 (-1)
24M → 40K
6:36 | 7:43/mi
25.2M
3:03:29
Rank: #6653 (-32)
40K → 25.2M
2:55 | 8:27/mi
Finish· 26.22 mi
3:11:15
Rank: #6688 (-35)
25.2M → Finish
7:46 | 7:37/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:10
Pace6:48 /mi
2nd Half
Distance13.11 mi
Time1:42:05
Pace7:47 /mi
📊Positive Split: 14.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:1620:426:4020:42
6:40
-
10K
6.21 mi11:07:1041:366:4220:54
6:44
+0:04
15K
9.32 mi11:28:131:02:396:4321:03
6:47
+0:03
20K
12.43 mi11:49:551:24:216:4721:42
6:59
+0:12
Half
13.11 mi11:54:441:29:106:484:49
7:04
+0:05
25K
15.53 mi12:12:391:47:056:5417:55
7:23
+0:19
30K
18.64 mi12:37:022:11:287:0324:23
7:51
+0:28
20M
20.00 mi12:47:522:22:187:0710:50
7:58
+0:07
21M
21.00 mi12:56:272:30:537:118:35
8:35
+0:37
35K
21.75 mi13:02:052:36:317:125:38
7:32
-1:03
23M
23.00 mi13:11:532:46:197:149:48
7:50
+0:18
24M
24.00 mi13:19:322:53:587:157:39
7:39
-0:11
40K
24.85 mi13:26:083:00:347:166:36
7:43
+0:04
25.2M
25.20 mi13:29:033:03:297:172:55
8:27
+0:44
Finish
26.22 mi13:36:493:11:157:187:46
7:37
-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

6:40 /mi

Average Pace

7:18 /mi

Slowest Pace

8:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:29:10

47% of race

Time at Steady Pace

1:19:45

42% of race

Time at Slower Pace

22:20

12% of race

Average Pace: 7:18 /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 mi10:46:1620:426:4020:42
6:40
#3351
10K
6.21 mi11:07:1041:366:4220:54
6:44
#3934
15K
9.32 mi11:28:131:02:396:4321:03
6:47
#4239
20K
12.43 mi11:49:551:24:216:4721:42
6:59
#4715
Half
13.11 mi11:54:441:29:106:484:49
7:04
#4883
25K
15.53 mi12:12:391:47:056:5417:55
7:23
#5540
30K
18.64 mi12:37:022:11:287:0324:23
7:51
#6147
20M
20.00 mi12:47:522:22:187:0710:50
7:58
#6321
21M
21.00 mi12:56:272:30:537:118:35
8:35
#6490
35K
21.75 mi13:02:052:36:317:125:38
7:32
#6526
23M
23.00 mi13:11:532:46:197:149:48
7:50
#6589
24M
24.00 mi13:19:322:53:587:157:39
7:39
#6620
40K
24.85 mi13:26:083:00:347:166:36
7:43
#6621
25.2M
25.20 mi13:29:033:03:297:172:55
8:27
#6653
Finish
26.22 mi13:36:493:11:157:187:46
7:37
#6688
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi3351316331634889(Top 18%)4550(Top 30%)4550(Top 222%)
10K6.21 mi3.10 mi3934-5833704-5413704-5414624(Top 17%)4312(Top 28%)4312(Top 210%)
15K9.32 mi3.11 mi4239-3053973-2693973-2694889(Top 18%)4550(Top 30%)4550(Top 222%)
20K12.43 mi3.11 mi4715-4764401-4284401-4285892(Top 22%)5388(Top 36%)5388(Top 263%)
Half13.11 mi0.68 mi4883-1684545-1444545-1446889(Top 26%)6146(Top 40%)6146(Top 300%)
25K15.53 mi2.42 mi5540-6575108-5635108-5637908(Top 30%)6737(Top 44%)6737(Top 328%)
30K18.64 mi3.11 mi6147-6075575-4675575-4679706(Top 36%)7667(Top 51%)7667(Top 374%)
20M20.00 mi1.36 mi6321-1745696-1215696-12110030(Top 38%)7763(Top 51%)7763(Top 378%)
21M21.00 mi1.00 mi6490-1695805-1095805-10910933(Top 41%)8078(Top 53%)8078(Top 394%)
35K21.75 mi0.75 mi6526-365826-215826-218678(Top 33%)6895(Top 45%)6895(Top 336%)
23M23.00 mi1.25 mi6589-635862-365862-368573(Top 32%)6731(Top 44%)6731(Top 328%)
24M24.00 mi1.00 mi6620-315869-75869-78704(Top 33%)6722(Top 44%)6722(Top 328%)
40K24.85 mi0.85 mi6621-15849+205849+208059(Top 30%)6278(Top 41%)6278(Top 306%)
25.2M25.20 mi0.35 mi6653-325866-175866-179147(Top 34%)6807(Top 45%)6807(Top 332%)
Finish26.22 mi1.02 mi6688-355877-115877-119376(Top 35%)6945(Top 46%)6945(Top 338%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21stories
+97ft-345ft

Overall

4889

Males

4550

M50-54

4550

5K→10K

3.1 - 6.2 mi

Top 17%
×5stories
+79ft-138ft

Overall

4624

Males

4312

M50-54

4312

10K→15K

6.2 - 9.3 mi

Top 18%
×3stories
+67ft-78ft

Overall

4889

Males

4550

M50-54

4550

15K→20K

9.3 - 12.4 mi

Top 22%
×5stories
+106ft-86ft

Overall

5892

Males

5388

M50-54

5388

20K→Half

12.4 - 13.1 mi

Top 26%
×2stories
+19ft-37ft

Overall

6889

Males

6146

M50-54

6146

Half→25K

13.1 - 15.5 mi

Top 30%
×4stories
+66ft-88ft

Overall

7908

Males

6737

M50-54

6737

25K→30K

15.5 - 18.6 mi

Top 36%
×9stories
+181ft-148ft

Overall

9706

Males

7667

M50-54

7667

30K→20M

18.6 - 20.0 mi

Top 38%
×5stories
+64ft-50ft

Overall

10030

Males

7763

M50-54

7763

20M→21M

20.0 - 21.0 mi

Top 41%
×8stories
+106ft-24ft

Overall

10933

Males

8078

M50-54

8078

21M→35K

21.0 - 21.8 mi

Top 33%
×7stories
+17ft-86ft

Overall

8678

Males

6895

M50-54

6895

35K→23M

21.8 - 23.0 mi

Top 32%
×5stories
+23ft-63ft

Overall

8573

Males

6731

M50-54

6731

23M→24M

23.0 - 24.0 mi

Top 33%
×6stories
+12ft-82ft

Overall

8704

Males

6722

M50-54

6722

24M→40K

24.0 - 24.9 mi

Top 30%
×1story
+6ft-20ft

Overall

8059

Males

6278

M50-54

6278

40K→25.2M

24.9 - 25.2 mi

Top 34%
×1story
+13ft-16ft

Overall

9147

Males

6807

M50-54

6807

25.2M→Finish

25.2 - 26.2 mi

Top 35%
×2stories
+22ft-21ft

Overall

9376

Males

6945

M50-54

6945

Passing Analysis

Category:
Athletes Passed
423
Passed By
3760
Net Change
-3337
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3351
5K → 10K50633-583#3351#3934
10K → 15K39344-305#3934#4239
15K → 20K19495-476#4239#4715
20K → Half4172-168#4715#4883
Half → 25K18675-657#4883#5540
25K → 30K23630-607#5540#6147
30K → 20M23197-174#6147#6321
20M → 21M21190-169#6321#6490
21M → 35K2965-36#6490#6526
35K → 23M44107-63#6526#6589
23M → 24M3869-31#6589#6620
24M → 40K5556-1#6620#6621
40K → 25.2M1547-32#6621#6653
25.2M → Finish4580-35#6653#6688
TOTALS4233760-3337
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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