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BOSTON MARATHON 2023

Michael Welsh

Bib: 7429•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 23%
Gender (Male)
#0 / 15176
Top 37%
Masters (Masters Men)
#0 / 9891
Top 22%
Division (M40-44)
#0 / 2241
Top 50%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:38
Rank: #10580
Start → 5K
23:38 | 7:36/mi
10K· 6.21 mi
46:09
Rank: #9382 (+1198)
5K → 10K
22:31 | 7:15/mi
15K· 9.32 mi
1:08:50
Rank: #9073 (+309)
10K → 15K
22:41 | 7:18/mi
20K· 12.43 mi
1:31:33
Rank: #8742 (+331)
15K → 20K
22:43 | 7:19/mi
Half· 13.11 mi
1:36:23
Rank: #8646 (+96)
20K → Half
4:50 | 7:05/mi
25K· 15.53 mi
1:54:02
Rank: #8373 (+273)
Half → 25K
17:39 | 7:17/mi
30K· 18.64 mi
2:16:38
Rank: #7853 (+520)
25K → 30K
22:36 | 7:16/mi
20M
2:26:09
Rank: #7486 (+367)
30K → 20M
9:31 | 7:00/mi
21M
2:33:12
Rank: #7146 (+340)
20M → 21M
7:03 | 7:03/mi
35K· 21.75 mi
2:38:09
Rank: #6963 (+183)
21M → 35K
4:57 | 6:37/mi
23M
2:46:48
Rank: #6705 (+258)
35K → 23M
8:39 | 6:55/mi
24M
2:53:35
Rank: #6526 (+179)
23M → 24M
6:47 | 6:47/mi
40K· 24.85 mi
2:59:43
Rank: #6416 (+110)
24M → 40K
6:08 | 7:10/mi
25.2M
3:02:17
Rank: #6359 (+57)
40K → 25.2M
2:34 | 7:27/mi
Finish· 26.22 mi
3:09:07
Rank: #6213 (+146)
25.2M → Finish
6:50 | 6:42/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:36:23
Pace7:21 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:32:44
Pace7:04 /mi
📊Negative Split: 3.8% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:29:0323:387:3623:38
7:36
-
10K
6.21 mi10:51:3446:097:2622:31
7:15
-0:21
15K
9.32 mi11:14:151:08:507:2322:41
7:18
+0:03
20K
12.43 mi11:36:581:31:337:2222:43
7:19
+0:01
Half
13.11 mi11:41:481:36:237:214:50
7:05
-0:14
25K
15.53 mi11:59:271:54:027:2017:39
7:17
+0:12
30K
18.64 mi12:22:032:16:387:2022:36
7:16
-0:01
20M
20.00 mi12:31:342:26:097:189:31
7:00
-0:16
21M
21.00 mi12:38:372:33:127:187:03
7:03
+0:03
35K
21.75 mi12:43:342:38:097:164:57
6:37
-0:26
23M
23.00 mi12:52:132:46:487:158:39
6:55
+0:18
24M
24.00 mi12:59:002:53:357:146:47
6:47
-0:08
40K
24.85 mi13:05:082:59:437:146:08
7:10
+0:23
25.2M
25.20 mi13:07:423:02:177:142:34
7:27
+0:17
Finish
26.22 mi13:14:323:09:077:136:50
6:42
-0:45

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

6:37 /mi

Average Pace

7:13 /mi

Slowest Pace

7:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:39:52

53% of race

Time at Steady Pace

1:29:15

47% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:13 /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 mi10:29:0323:387:3623:38
7:36
#10580
10K
6.21 mi10:51:3446:097:2622:31
7:15
#9382
15K
9.32 mi11:14:151:08:507:2322:41
7:18
#9073
20K
12.43 mi11:36:581:31:337:2222:43
7:19
#8742
Half
13.11 mi11:41:481:36:237:214:50
7:05
#8646
25K
15.53 mi11:59:271:54:027:2017:39
7:17
#8373
30K
18.64 mi12:22:032:16:387:2022:36
7:16
#7853
20M
20.00 mi12:31:342:26:097:189:31
7:00
#7486
21M
21.00 mi12:38:372:33:127:187:03
7:03
#7146
35K
21.75 mi12:43:342:38:097:164:57
6:37
#6963
23M
23.00 mi12:52:132:46:487:158:39
6:55
#6705
24M
24.00 mi12:59:002:53:357:146:47
6:47
#6526
40K
24.85 mi13:05:082:59:437:146:08
7:10
#6416
25.2M
25.20 mi13:07:423:02:177:142:34
7:27
#6359
Finish
26.22 mi13:14:323:09:077:136:50
6:42
#6213
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi10580843884388535(Top 32%)7259(Top 48%)7259(Top 324%)
10K6.21 mi3.10 mi9382+11987806+6327806+6328442(Top 32%)7217(Top 48%)7217(Top 322%)
15K9.32 mi3.11 mi9073+3097603+2037603+2038535(Top 32%)7259(Top 48%)7259(Top 324%)
20K12.43 mi3.11 mi8742+3317400+2037400+2037849(Top 29%)6781(Top 45%)6781(Top 303%)
Half13.11 mi0.68 mi8646+967341+597341+597009(Top 26%)6226(Top 41%)6226(Top 278%)
25K15.53 mi2.42 mi8373+2737147+1947147+1947143(Top 27%)6245(Top 41%)6245(Top 279%)
30K18.64 mi3.11 mi7853+5206783+3646783+3645895(Top 22%)5300(Top 35%)5300(Top 237%)
20M20.00 mi1.36 mi7486+3676525+2586525+2584075(Top 15%)3775(Top 25%)3775(Top 168%)
21M21.00 mi1.00 mi7146+3406296+2296296+2292415(Top 9%)2284(Top 15%)2284(Top 102%)
35K21.75 mi0.75 mi6963+1836156+1406156+1403146(Top 12%)2948(Top 19%)2948(Top 132%)
23M23.00 mi1.25 mi6705+2585948+2085948+2083315(Top 12%)3084(Top 20%)3084(Top 138%)
24M24.00 mi1.00 mi6526+1795805+1435805+1433583(Top 13%)3294(Top 22%)3294(Top 147%)
40K24.85 mi0.85 mi6416+1105712+935712+934747(Top 18%)4174(Top 28%)4174(Top 186%)
25.2M25.20 mi0.35 mi6359+575664+485664+483681(Top 14%)3309(Top 22%)3309(Top 148%)
Finish26.22 mi1.02 mi6213+1465542+1225542+1223567(Top 13%)3192(Top 21%)3192(Top 142%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×21stories
+97ft-345ft

Overall

8535

Males

7259

M40-44

7259

5K→10K

3.1 - 6.2 mi

Top 32%
×5stories
+79ft-138ft

Overall

8442

Males

7217

M40-44

7217

10K→15K

6.2 - 9.3 mi

Top 32%
×3stories
+67ft-78ft

Overall

8535

Males

7259

M40-44

7259

15K→20K

9.3 - 12.4 mi

Top 29%
×5stories
+106ft-86ft

Overall

7849

Males

6781

M40-44

6781

20K→Half

12.4 - 13.1 mi

Top 26%
×2stories
+19ft-37ft

Overall

7009

Males

6226

M40-44

6226

Half→25K

13.1 - 15.5 mi

Top 27%
×4stories
+66ft-88ft

Overall

7143

Males

6245

M40-44

6245

25K→30K

15.5 - 18.6 mi

Top 22%
×9stories
+181ft-148ft

Overall

5895

Males

5300

M40-44

5300

30K→20M

18.6 - 20.0 mi

Top 15%
×5stories
+64ft-50ft

Overall

4075

Males

3775

M40-44

3775

20M→21M

20.0 - 21.0 mi

Top 9%
×8stories
+106ft-24ft

Overall

2415

Males

2284

M40-44

2284

21M→35K

21.0 - 21.8 mi

Top 12%
×7stories
+17ft-86ft

Overall

3146

Males

2948

M40-44

2948

35K→23M

21.8 - 23.0 mi

Top 12%
×5stories
+23ft-63ft

Overall

3315

Males

3084

M40-44

3084

23M→24M

23.0 - 24.0 mi

Top 13%
×6stories
+12ft-82ft

Overall

3583

Males

3294

M40-44

3294

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

4747

Males

4174

M40-44

4174

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

3681

Males

3309

M40-44

3309

25.2M→Finish

25.2 - 26.2 mi

Top 13%
×2stories
+22ft-21ft

Overall

3567

Males

3192

M40-44

3192

Passing Analysis

Category:
Athletes Passed
4470*
Passed By
103
Net Change
+4367
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10580
5K → 10K1229*31+1198#10580#9382
10K → 15K34637+309#9382#9073
15K → 20K34615+331#9073#8742
20K → Half960+96#8742#8646
Half → 25K2796+273#8646#8373
25K → 30K5211+520#8373#7853
30K → 20M3681+367#7853#7486
20M → 21M3400+340#7486#7146
21M → 35K1841+183#7146#6963
35K → 23M2580+258#6963#6705
23M → 24M1801+179#6705#6526
24M → 40K1177+110#6526#6416
40K → 25.2M581+57#6416#6359
25.2M → Finish1482+146#6359#6213
TOTALS4470*103+4367

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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