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BOSTON MARATHON 2023

Tomasz Kwiatkowski

Bib: 4386•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 48%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M40-44)
#0 / 2241
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:12
Rank: #9354
Start → 5K
23:12 | 7:28/mi
10K· 6.21 mi
46:53
Rank: #10427 (-1073)
5K → 10K
23:41 | 7:37/mi
15K· 9.32 mi
1:11:10
Rank: #11242 (-815)
10K → 15K
24:17 | 7:49/mi
20K· 12.43 mi
1:35:47
Rank: #11588 (-346)
15K → 20K
24:37 | 7:55/mi
Half· 13.11 mi
1:41:07
Rank: #11642 (-54)
20K → Half
5:20 | 7:49/mi
25K· 15.53 mi
2:00:38
Rank: #11850 (-208)
Half → 25K
19:31 | 8:03/mi
30K· 18.64 mi
2:27:28
Rank: #12560 (-710)
25K → 30K
26:50 | 8:38/mi
20M
2:39:24
Rank: #12793 (-233)
30K → 20M
11:56 | 8:47/mi
21M
2:48:36
Rank: #12890 (-97)
20M → 21M
9:12 | 9:12/mi
35K· 21.75 mi
2:55:03
Rank: #13001 (-111)
21M → 35K
6:27 | 8:37/mi
23M
3:05:37
Rank: #12968 (+33)
35K → 23M
10:34 | 8:26/mi
24M
3:13:58
Rank: #12987 (-19)
23M → 24M
8:21 | 8:21/mi
40K· 24.85 mi
3:21:01
Rank: #12935 (+52)
24M → 40K
7:03 | 8:15/mi
25.2M
3:23:59
Rank: #12881 (+54)
40K → 25.2M
2:58 | 8:36/mi
Finish· 26.22 mi
3:32:09
Rank: #12839 (+42)
25.2M → Finish
8:10 | 8:01/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:07
Pace7:43 /mi
2nd Half
Distance13.11 mi
Time1:51:02
Pace8:28 /mi
📊Positive Split: 9.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:0623:127:2823:12
7:28
-
10K
6.21 mi10:49:4746:537:3323:41
7:37
+0:09
15K
9.32 mi11:14:041:11:107:3824:17
7:49
+0:12
20K
12.43 mi11:38:411:35:477:4224:37
7:55
+0:06
Half
13.11 mi11:44:011:41:077:435:20
7:49
-0:06
25K
15.53 mi12:03:322:00:387:4619:31
8:03
+0:14
30K
18.64 mi12:30:222:27:287:5526:50
8:38
+0:35
20M
20.00 mi12:42:182:39:247:5811:56
8:47
+0:09
21M
21.00 mi12:51:302:48:368:029:12
9:12
+0:25
35K
21.75 mi12:57:572:55:038:036:27
8:37
-0:35
23M
23.00 mi13:08:313:05:378:0410:34
8:26
-0:11
24M
24.00 mi13:16:523:13:588:058:21
8:21
-0:05
40K
24.85 mi13:23:553:21:018:057:03
8:15
-0:06
25.2M
25.20 mi13:26:533:23:598:062:58
8:36
+0:21
Finish
26.22 mi13:35:033:32:098:068:10
8:01
-0:35

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

7:28 /mi

Average Pace

8:06 /mi

Slowest Pace

9:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:49:17

52% of race

Time at Steady Pace

45:29

21% of race

Time at Slower Pace

57:23

27% of race

Average Pace: 8:05 /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 mi10:26:0623:127:2823:12
7:28
#9354
10K
6.21 mi10:49:4746:537:3323:41
7:37
#10427
15K
9.32 mi11:14:041:11:107:3824:17
7:49
#11242
20K
12.43 mi11:38:411:35:477:4224:37
7:55
#11588
Half
13.11 mi11:44:011:41:077:435:20
7:49
#11642
25K
15.53 mi12:03:322:00:387:4619:31
8:03
#11850
30K
18.64 mi12:30:222:27:287:5526:50
8:38
#12560
20M
20.00 mi12:42:182:39:247:5811:56
8:47
#12793
21M
21.00 mi12:51:302:48:368:029:12
9:12
#12890
35K
21.75 mi12:57:572:55:038:036:27
8:37
#13001
23M
23.00 mi13:08:313:05:378:0410:34
8:26
#12968
24M
24.00 mi13:16:523:13:588:058:21
8:21
#12987
40K
24.85 mi13:23:553:21:018:057:03
8:15
#12935
25.2M
25.20 mi13:26:533:23:598:062:58
8:36
#12881
Finish
26.22 mi13:35:033:32:098:068:10
8:01
#12839
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi93547790779012861(Top 48%)9458(Top 62%)9458(Top 422%)
10K6.21 mi3.10 mi10427-10738377-5878377-58711526(Top 43%)8896(Top 59%)8896(Top 397%)
15K9.32 mi3.11 mi11242-8158768-3918768-39112861(Top 48%)9458(Top 62%)9458(Top 422%)
20K12.43 mi3.11 mi11588-3468895-1278895-12712803(Top 48%)9348(Top 62%)9348(Top 417%)
Half13.11 mi0.68 mi11642-548918-238918-2312823(Top 48%)9416(Top 62%)9416(Top 420%)
25K15.53 mi2.42 mi11850-2088992-748992-7413126(Top 49%)9411(Top 62%)9411(Top 420%)
30K18.64 mi3.11 mi12560-7109251-2599251-25915133(Top 57%)10092(Top 66%)10092(Top 450%)
20M20.00 mi1.36 mi12793-2339332-819332-8115295(Top 57%)10110(Top 67%)10110(Top 451%)
21M21.00 mi1.00 mi12890-979351-199351-1914447(Top 54%)9687(Top 64%)9687(Top 432%)
35K21.75 mi0.75 mi13001-1119378-279378-2715931(Top 60%)10254(Top 68%)10254(Top 458%)
23M23.00 mi1.25 mi12968+339339+399339+3912831(Top 48%)8837(Top 58%)8837(Top 394%)
24M24.00 mi1.00 mi12987-199331+89331+813511(Top 51%)9087(Top 60%)9087(Top 405%)
40K24.85 mi0.85 mi12935+529283+489283+4811652(Top 44%)8154(Top 54%)8154(Top 364%)
25.2M25.20 mi0.35 mi12881+549254+299254+2910156(Top 38%)7390(Top 49%)7390(Top 330%)
Finish26.22 mi1.02 mi12839+429218+369218+3612211(Top 46%)8386(Top 55%)8386(Top 374%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21stories
+97ft-345ft

Overall

12861

Males

9458

M40-44

9458

5K→10K

3.1 - 6.2 mi

Top 43%
×5stories
+79ft-138ft

Overall

11526

Males

8896

M40-44

8896

10K→15K

6.2 - 9.3 mi

Top 48%
×3stories
+67ft-78ft

Overall

12861

Males

9458

M40-44

9458

15K→20K

9.3 - 12.4 mi

Top 48%
×5stories
+106ft-86ft

Overall

12803

Males

9348

M40-44

9348

20K→Half

12.4 - 13.1 mi

Top 48%
×2stories
+19ft-37ft

Overall

12823

Males

9416

M40-44

9416

Half→25K

13.1 - 15.5 mi

Top 49%
×4stories
+66ft-88ft

Overall

13126

Males

9411

M40-44

9411

25K→30K

15.5 - 18.6 mi

Top 57%
×9stories
+181ft-148ft

Overall

15133

Males

10092

M40-44

10092

30K→20M

18.6 - 20.0 mi

Top 57%
×5stories
+64ft-50ft

Overall

15295

Males

10110

M40-44

10110

20M→21M

20.0 - 21.0 mi

Top 54%
×8stories
+106ft-24ft

Overall

14447

Males

9687

M40-44

9687

21M→35K

21.0 - 21.8 mi

Top 60%
×7stories
+17ft-86ft

Overall

15931

Males

10254

M40-44

10254

35K→23M

21.8 - 23.0 mi

Top 48%
×5stories
+23ft-63ft

Overall

12831

Males

8837

M40-44

8837

23M→24M

23.0 - 24.0 mi

Top 51%
×6stories
+12ft-82ft

Overall

13511

Males

9087

M40-44

9087

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

11652

Males

8154

M40-44

8154

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1story
+13ft-16ft

Overall

10156

Males

7390

M40-44

7390

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2stories
+22ft-21ft

Overall

12211

Males

8386

M40-44

8386

Passing Analysis

Category:
Athletes Passed
828
Passed By
4312
Net Change
-3485
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9354
5K → 10K431115-1073#9354#10427
10K → 15K28843-815#10427#11242
15K → 20K72418-346#11242#11588
20K → Half1771-54#11588#11642
Half → 25K82290-208#11642#11850
25K → 30K60770-710#11850#12560
30K → 20M49282-233#12560#12793
20M → 21M66163-97#12793#12890
21M → 35K20131-111#12890#13001
35K → 23M10370+33#13001#12968
23M → 24M5473-19#12968#12987
24M → 40K9240+52#12987#12935
40K → 25.2M584+54#12935#12881
25.2M → Finish8442+42#12881#12839
TOTALS8284312-3485
📊

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