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BOSTON MARATHON 2023

Jon Andrews

Bib: 8952•M

KY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 21%
Gender (Male)
#0 / 15176
Top 33%
Masters (Masters Men)
#0 / 9891
Top 19%
Division (M45-49)
#0 / 2252
Top 23%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:52
Rank: #3824
Start → 5K
20:52 | 6:43/mi
10K· 6.21 mi
41:52
Rank: #4366 (-542)
5K → 10K
21:00 | 6:46/mi
15K· 9.32 mi
1:03:01
Rank: #4618 (-252)
10K → 15K
21:09 | 6:48/mi
20K· 12.43 mi
1:24:10
Rank: #4581 (+37)
15K → 20K
21:09 | 6:48/mi
Half· 13.11 mi
1:28:49
Rank: #4610 (-29)
20K → Half
4:39 | 6:49/mi
25K· 15.53 mi
1:45:39
Rank: #4712 (-102)
Half → 25K
16:50 | 6:57/mi
30K· 18.64 mi
2:07:49
Rank: #4806 (-94)
25K → 30K
22:10 | 7:08/mi
20M
2:17:51
Rank: #4936 (-130)
30K → 20M
10:02 | 7:23/mi
21M
2:26:01
Rank: #5116 (-180)
20M → 21M
8:10 | 8:10/mi
35K· 21.75 mi
2:31:30
Rank: #5168 (-52)
21M → 35K
5:29 | 7:20/mi
23M
2:41:21
Rank: #5319 (-151)
35K → 23M
9:51 | 7:52/mi
24M
2:49:01
Rank: #5400 (-81)
23M → 24M
7:40 | 7:40/mi
40K· 24.85 mi
2:55:25
Rank: #5402 (-2)
24M → 40K
6:24 | 7:29/mi
25.2M
2:58:23
Rank: #5435 (-33)
40K → 25.2M
2:58 | 8:36/mi
Finish· 26.22 mi
3:06:20
Rank: #5543 (-108)
25.2M → Finish
7:57 | 7:48/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:49
Pace6:46 /mi
2nd Half
Distance13.11 mi
Time1:37:31
Pace7:26 /mi
📊Positive Split: 9.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:0120:526:4320:52
6:43
-
10K
6.21 mi11:07:0141:526:4421:00
6:46
+0:03
15K
9.32 mi11:28:101:03:016:4621:09
6:48
+0:02
20K
12.43 mi11:49:191:24:106:4621:09
6:48
0:00
Half
13.11 mi11:53:581:28:496:464:39
6:49
+0:01
25K
15.53 mi12:10:481:45:396:4816:50
6:57
+0:08
30K
18.64 mi12:32:582:07:496:5122:10
7:08
+0:11
20M
20.00 mi12:43:002:17:516:5410:02
7:23
+0:15
21M
21.00 mi12:51:102:26:016:578:10
8:10
+0:47
35K
21.75 mi12:56:392:31:306:585:29
7:20
-0:50
23M
23.00 mi13:06:302:41:217:019:51
7:52
+0:32
24M
24.00 mi13:14:102:49:017:037:40
7:40
-0:12
40K
24.85 mi13:20:342:55:257:036:24
7:29
-0:11
25.2M
25.20 mi13:23:322:58:237:052:58
8:36
+1:07
Finish
26.22 mi13:31:293:06:207:077:57
7:48
-0:48

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

6:43 /mi

Average Pace

7:07 /mi

Slowest Pace

8:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:45:39

57% of race

Time at Steady Pace

44:05

24% of race

Time at Slower Pace

36:36

20% of race

Average Pace: 7:06 /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 mi10:46:0120:526:4320:52
6:43
#3824
10K
6.21 mi11:07:0141:526:4421:00
6:46
#4366
15K
9.32 mi11:28:101:03:016:4621:09
6:48
#4618
20K
12.43 mi11:49:191:24:106:4621:09
6:48
#4581
Half
13.11 mi11:53:581:28:496:464:39
6:49
#4610
25K
15.53 mi12:10:481:45:396:4816:50
6:57
#4712
30K
18.64 mi12:32:582:07:496:5122:10
7:08
#4806
20M
20.00 mi12:43:002:17:516:5410:02
7:23
#4936
21M
21.00 mi12:51:102:26:016:578:10
8:10
#5116
35K
21.75 mi12:56:392:31:306:585:29
7:20
#5168
23M
23.00 mi13:06:302:41:217:019:51
7:52
#5319
24M
24.00 mi13:14:102:49:017:037:40
7:40
#5400
40K
24.85 mi13:20:342:55:257:036:24
7:29
#5402
25.2M
25.20 mi13:23:322:58:237:052:58
8:36
#5435
Finish
26.22 mi13:31:293:06:207:077:57
7:48
#5543
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi3824359535955204(Top 20%)4812(Top 32%)4812(Top 214%)
10K6.21 mi3.10 mi4366-5424090-4954090-4954911(Top 18%)4556(Top 30%)4556(Top 202%)
15K9.32 mi3.11 mi4618-2524310-2204310-2205204(Top 20%)4812(Top 32%)4812(Top 214%)
20K12.43 mi3.11 mi4581+374276+344276+344519(Top 17%)4215(Top 28%)4215(Top 187%)
Half13.11 mi0.68 mi4610-294300-244300-245400(Top 20%)4983(Top 33%)4983(Top 221%)
25K15.53 mi2.42 mi4712-1024389-894389-895249(Top 20%)4841(Top 32%)4841(Top 215%)
30K18.64 mi3.11 mi4806-944472-834472-835120(Top 19%)4699(Top 31%)4699(Top 209%)
20M20.00 mi1.36 mi4936-1304580-1084580-1086076(Top 23%)5349(Top 35%)5349(Top 238%)
21M21.00 mi1.00 mi5116-1804725-1454725-1458371(Top 31%)6677(Top 44%)6677(Top 296%)
35K21.75 mi0.75 mi5168-524764-394764-397273(Top 27%)6046(Top 40%)6046(Top 268%)
23M23.00 mi1.25 mi5319-1514884-1204884-1208814(Top 33%)6857(Top 45%)6857(Top 304%)
24M24.00 mi1.00 mi5400-814943-594943-598817(Top 33%)6786(Top 45%)6786(Top 301%)
40K24.85 mi0.85 mi5402-24932+114932+116604(Top 25%)5392(Top 36%)5392(Top 239%)
25.2M25.20 mi0.35 mi5435-334958-264958-2610060(Top 38%)7294(Top 48%)7294(Top 324%)
Finish26.22 mi1.02 mi5543-1085034-765034-7610639(Top 40%)7604(Top 50%)7604(Top 338%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 20%
×21stories
+97ft-345ft

Overall

5204

Males

4812

M45-49

4812

5K→10K

3.1 - 6.2 mi

Top 18%
×5stories
+79ft-138ft

Overall

4911

Males

4556

M45-49

4556

10K→15K

6.2 - 9.3 mi

Top 20%
×3stories
+67ft-78ft

Overall

5204

Males

4812

M45-49

4812

15K→20K

9.3 - 12.4 mi

Top 17%
×5stories
+106ft-86ft

Overall

4519

Males

4215

M45-49

4215

20K→Half

12.4 - 13.1 mi

Top 20%
×2stories
+19ft-37ft

Overall

5400

Males

4983

M45-49

4983

Half→25K

13.1 - 15.5 mi

Top 20%
×4stories
+66ft-88ft

Overall

5249

Males

4841

M45-49

4841

25K→30K

15.5 - 18.6 mi

Top 19%
×9stories
+181ft-148ft

Overall

5120

Males

4699

M45-49

4699

30K→20M

18.6 - 20.0 mi

Top 23%
×5stories
+64ft-50ft

Overall

6076

Males

5349

M45-49

5349

20M→21M

20.0 - 21.0 mi

Top 31%
×8stories
+106ft-24ft

Overall

8371

Males

6677

M45-49

6677

21M→35K

21.0 - 21.8 mi

Top 27%
×7stories
+17ft-86ft

Overall

7273

Males

6046

M45-49

6046

35K→23M

21.8 - 23.0 mi

Top 33%
×5stories
+23ft-63ft

Overall

8814

Males

6857

M45-49

6857

23M→24M

23.0 - 24.0 mi

Top 33%
×6stories
+12ft-82ft

Overall

8817

Males

6786

M45-49

6786

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

6604

Males

5392

M45-49

5392

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1story
+13ft-16ft

Overall

10060

Males

7294

M45-49

7294

25.2M→Finish

25.2 - 26.2 mi

Top 40%
×2stories
+22ft-21ft

Overall

10639

Males

7604

M45-49

7604

Passing Analysis

Category:
Athletes Passed
626
Passed By
2345
Net Change
-1719
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3824
5K → 10K59601-542#3824#4366
10K → 15K56308-252#4366#4618
15K → 20K12083+37#4618#4581
20K → Half837-29#4581#4610
Half → 25K73175-102#4610#4712
25K → 30K102196-94#4712#4806
30K → 20M36166-130#4806#4936
20M → 21M14194-180#4936#5116
21M → 35K2375-52#5116#5168
35K → 23M25176-151#5168#5319
23M → 24M31112-81#5319#5400
24M → 40K4143-2#5400#5402
40K → 25.2M1346-33#5402#5435
25.2M → Finish25133-108#5435#5543
TOTALS6262345-1719
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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