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BOSTON MARATHON 2023

Skip Alderson

Bib: 6782•M

PA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 6%
Gender (Male)
#0 / 15176
Top 10%
Masters (Masters Men)
#0 / 9891
Top 3%
Division (M40-44)
#0 / 2241
Top 9%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:08
Rank: #2162
Start → 5K
20:08 | 6:29/mi
10K· 6.21 mi
39:54
Rank: #2096 (+66)
5K → 10K
19:46 | 6:22/mi
15K· 9.32 mi
59:56
Rank: #2146 (-50)
10K → 15K
20:02 | 6:27/mi
20K· 12.43 mi
1:20:03
Rank: #2149 (-3)
15K → 20K
20:07 | 6:28/mi
Half· 13.11 mi
1:24:25
Rank: #2149
20K → Half
4:22 | 6:24/mi
25K· 15.53 mi
1:40:06
Rank: #2115 (+34)
Half → 25K
15:41 | 6:28/mi
30K· 18.64 mi
2:00:28
Rank: #2029 (+86)
25K → 30K
20:22 | 6:33/mi
20M
2:09:17
Rank: #1952 (+77)
30K → 20M
8:49 | 6:29/mi
21M
2:16:04
Rank: #1909 (+43)
20M → 21M
6:47 | 6:47/mi
35K· 21.75 mi
2:20:39
Rank: #1856 (+53)
21M → 35K
4:35 | 6:08/mi
23M
2:28:34
Rank: #1765 (+91)
35K → 23M
7:55 | 6:19/mi
24M
2:34:51
Rank: #1724 (+41)
23M → 24M
6:17 | 6:17/mi
40K· 24.85 mi
2:40:19
Rank: #1663 (+61)
24M → 40K
5:28 | 6:24/mi
25.2M
2:42:42
Rank: #1654 (+9)
40K → 25.2M
2:23 | 6:55/mi
Finish· 26.22 mi
2:48:58
Rank: #1604 (+50)
25.2M → Finish
6:16 | 6:09/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:24:25
Pace6:26 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:24:33
Pace6:27 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:0720:086:2920:08
6:29
-
10K
6.21 mi10:42:5339:546:2519:46
6:22
-0:07
15K
9.32 mi11:02:5559:566:2620:02
6:27
+0:05
20K
12.43 mi11:23:021:20:036:2620:07
6:28
+0:01
Half
13.11 mi11:27:241:24:256:264:22
6:24
-0:04
25K
15.53 mi11:43:051:40:066:2715:41
6:28
+0:04
30K
18.64 mi12:03:272:00:286:2820:22
6:33
+0:05
20M
20.00 mi12:12:162:09:176:288:49
6:29
-0:04
21M
21.00 mi12:19:032:16:046:296:47
6:47
+0:18
35K
21.75 mi12:23:382:20:396:284:35
6:08
-0:39
23M
23.00 mi12:31:332:28:346:287:55
6:19
+0:11
24M
24.00 mi12:37:502:34:516:276:17
6:17
-0:02
40K
24.85 mi12:43:182:40:196:275:28
6:24
+0:07
25.2M
25.20 mi12:45:412:42:426:272:23
6:55
+0:31
Finish
26.22 mi12:51:572:48:586:276:16
6:09
-0:46

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

6:08 /mi

Average Pace

6:27 /mi

Slowest Pace

6:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:39:48

95% of race

Time at Steady Pace

9:10

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:27 /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 mi10:23:0720:086:2920:08
6:29
#2162
10K
6.21 mi10:42:5339:546:2519:46
6:22
#2096
15K
9.32 mi11:02:5559:566:2620:02
6:27
#2146
20K
12.43 mi11:23:021:20:036:2620:07
6:28
#2149
Half
13.11 mi11:27:241:24:256:264:22
6:24
#2149
25K
15.53 mi11:43:051:40:066:2715:41
6:28
#2115
30K
18.64 mi12:03:272:00:286:2820:22
6:33
#2029
20M
20.00 mi12:12:162:09:176:288:49
6:29
#1952
21M
21.00 mi12:19:032:16:046:296:47
6:47
#1909
35K
21.75 mi12:23:382:20:396:284:35
6:08
#1856
23M
23.00 mi12:31:332:28:346:287:55
6:19
#1765
24M
24.00 mi12:37:502:34:516:276:17
6:17
#1724
40K
24.85 mi12:43:182:40:196:275:28
6:24
#1663
25.2M
25.20 mi12:45:412:42:426:272:23
6:55
#1654
Finish
26.22 mi12:51:572:48:586:276:16
6:09
#1604
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi2162206120612339(Top 9%)2245(Top 15%)2245(Top 100%)
10K6.21 mi3.10 mi2096+662006+552006+552038(Top 8%)1949(Top 13%)1949(Top 87%)
15K9.32 mi3.11 mi2146-502058-522058-522339(Top 9%)2245(Top 15%)2245(Top 100%)
20K12.43 mi3.11 mi2149-3205820582143(Top 8%)2055(Top 14%)2055(Top 92%)
Half13.11 mi0.68 mi21492059-12059-12180(Top 8%)2090(Top 14%)2090(Top 93%)
25K15.53 mi2.42 mi2115+342029+302029+302009(Top 8%)1924(Top 13%)1924(Top 86%)
30K18.64 mi3.11 mi2029+861946+831946+831776(Top 7%)1699(Top 11%)1699(Top 76%)
20M20.00 mi1.36 mi1952+771869+771869+771406(Top 5%)1341(Top 9%)1341(Top 60%)
21M21.00 mi1.00 mi1909+431826+431826+431359(Top 5%)1296(Top 9%)1296(Top 58%)
35K21.75 mi0.75 mi1856+531775+511775+511025(Top 4%)975(Top 6%)975(Top 44%)
23M23.00 mi1.25 mi1765+911688+871688+87898(Top 3%)854(Top 6%)854(Top 38%)
24M24.00 mi1.00 mi1724+411648+401648+401309(Top 5%)1239(Top 8%)1239(Top 55%)
40K24.85 mi0.85 mi1663+611589+591589+591190(Top 4%)1125(Top 7%)1125(Top 50%)
25.2M25.20 mi0.35 mi1654+91579+101579+101456(Top 5%)1373(Top 9%)1373(Top 61%)
Finish26.22 mi1.02 mi1604+501532+471532+471134(Top 4%)1080(Top 7%)1080(Top 48%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 9%
×21stories
+97ft-345ft

Overall

2339

Males

2245

M40-44

2245

5K→10K

3.1 - 6.2 mi

Top 8%
×5stories
+79ft-138ft

Overall

2038

Males

1949

M40-44

1949

10K→15K

6.2 - 9.3 mi

Top 9%
×3stories
+67ft-78ft

Overall

2339

Males

2245

M40-44

2245

15K→20K

9.3 - 12.4 mi

Top 8%
×5stories
+106ft-86ft

Overall

2143

Males

2055

M40-44

2055

20K→Half

12.4 - 13.1 mi

Top 8%
×2stories
+19ft-37ft

Overall

2180

Males

2090

M40-44

2090

Half→25K

13.1 - 15.5 mi

Top 8%
×4stories
+66ft-88ft

Overall

2009

Males

1924

M40-44

1924

25K→30K

15.5 - 18.6 mi

Top 7%
×9stories
+181ft-148ft

Overall

1776

Males

1699

M40-44

1699

30K→20M

18.6 - 20.0 mi

Top 5%
×5stories
+64ft-50ft

Overall

1406

Males

1341

M40-44

1341

20M→21M

20.0 - 21.0 mi

Top 5%
×8stories
+106ft-24ft

Overall

1359

Males

1296

M40-44

1296

21M→35K

21.0 - 21.8 mi

Top 4%
×7stories
+17ft-86ft

Overall

1025

Males

975

M40-44

975

35K→23M

21.8 - 23.0 mi

Top 3%
×5stories
+23ft-63ft

Overall

898

Males

854

M40-44

854

23M→24M

23.0 - 24.0 mi

Top 5%
×6stories
+12ft-82ft

Overall

1309

Males

1239

M40-44

1239

24M→40K

24.0 - 24.9 mi

Top 4%
×1story
+6ft-20ft

Overall

1190

Males

1125

M40-44

1125

40K→25.2M

24.9 - 25.2 mi

Top 5%
×1story
+13ft-16ft

Overall

1456

Males

1373

M40-44

1373

25.2M→Finish

25.2 - 26.2 mi

Top 4%
×2stories
+22ft-21ft

Overall

1134

Males

1080

M40-44

1080

Passing Analysis

Category:
Athletes Passed
907
Passed By
349
Net Change
+558
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2162
5K → 10K14983+66#2162#2096
10K → 15K4696-50#2096#2146
15K → 20K5962-3#2146#2149
20K → Half16160#2149#2149
Half → 25K5420+34#2149#2115
25K → 30K11428+86#2115#2029
30K → 20M825+77#2029#1952
20M → 21M5512+43#1952#1909
21M → 35K541+53#1909#1856
35K → 23M943+91#1856#1765
23M → 24M498+41#1765#1724
24M → 40K654+61#1724#1663
40K → 25.2M156+9#1663#1654
25.2M → Finish555+50#1654#1604
TOTALS907349+558
📊

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