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BOSTON MARATHON 2023

Mason Baxter

Bib: 5879•M

DC

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 5%
Gender (Male)
#0 / 15176
Top 9%
Division (M18-39)
#0 / 5285
Top 21%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:53
Rank: #3841
Start → 5K
20:53 | 6:43/mi
10K· 6.21 mi
40:51
Rank: #2960 (+881)
5K → 10K
19:58 | 6:26/mi
15K· 9.32 mi
1:00:23
Rank: #2430 (+530)
10K → 15K
19:32 | 6:17/mi
20K· 12.43 mi
1:20:08
Rank: #2185 (+245)
15K → 20K
19:45 | 6:21/mi
Half· 13.11 mi
1:24:27
Rank: #2163 (+22)
20K → Half
4:19 | 6:20/mi
25K· 15.53 mi
1:39:44
Rank: #1984 (+179)
Half → 25K
15:17 | 6:18/mi
30K· 18.64 mi
1:59:37
Rank: #1810 (+174)
25K → 30K
19:53 | 6:24/mi
20M
2:08:18
Rank: #1731 (+79)
30K → 20M
8:41 | 6:23/mi
21M
2:15:02
Rank: #1682 (+49)
20M → 21M
6:44 | 6:44/mi
35K· 21.75 mi
2:19:41
Rank: #1654 (+28)
21M → 35K
4:39 | 6:13/mi
23M
2:27:42
Rank: #1609 (+45)
35K → 23M
8:01 | 6:24/mi
24M
2:33:54
Rank: #1556 (+53)
23M → 24M
6:12 | 6:12/mi
40K· 24.85 mi
2:39:24
Rank: #1527 (+29)
24M → 40K
5:30 | 6:26/mi
25.2M
2:41:37
Rank: #1501 (+26)
40K → 25.2M
2:13 | 6:26/mi
Finish· 26.22 mi
2:47:48
Rank: #1446 (+55)
25.2M → Finish
6:11 | 6:04/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:24:27
Pace6:27 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:23:21
Pace6:21 /mi
📊Negative Split: 1.3% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:5120:536:4320:53
6:43
-
10K
6.21 mi10:43:4940:516:3419:58
6:26
-0:17
15K
9.32 mi11:03:211:00:236:2919:32
6:17
-0:09
20K
12.43 mi11:23:061:20:086:2719:45
6:21
+0:04
Half
13.11 mi11:27:251:24:276:274:19
6:20
-0:01
25K
15.53 mi11:42:421:39:446:2515:17
6:18
-0:02
30K
18.64 mi12:02:351:59:376:2519:53
6:24
+0:06
20M
20.00 mi12:11:162:08:186:258:41
6:23
-0:01
21M
21.00 mi12:18:002:15:026:266:44
6:44
+0:21
35K
21.75 mi12:22:392:19:416:254:39
6:13
-0:31
23M
23.00 mi12:30:402:27:426:258:01
6:24
+0:11
24M
24.00 mi12:36:522:33:546:256:12
6:12
-0:12
40K
24.85 mi12:42:222:39:246:255:30
6:26
+0:14
25.2M
25.20 mi12:44:352:41:376:252:13
6:26
0:00
Finish
26.22 mi12:50:462:47:486:246:11
6:04
-0:22

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

6:04 /mi

Average Pace

6:24 /mi

Slowest Pace

6:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:20:11

84% of race

Time at Steady Pace

27:37

16% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:24 /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 mi10:23:5120:536:4320:53
6:43
#3841
10K
6.21 mi10:43:4940:516:3419:58
6:26
#2960
15K
9.32 mi11:03:211:00:236:2919:32
6:17
#2430
20K
12.43 mi11:23:061:20:086:2719:45
6:21
#2185
Half
13.11 mi11:27:251:24:276:274:19
6:20
#2163
25K
15.53 mi11:42:421:39:446:2515:17
6:18
#1984
30K
18.64 mi12:02:351:59:376:2519:53
6:24
#1810
20M
20.00 mi12:11:162:08:186:258:41
6:23
#1731
21M
21.00 mi12:18:002:15:026:266:44
6:44
#1682
35K
21.75 mi12:22:392:19:416:254:39
6:13
#1654
23M
23.00 mi12:30:402:27:426:258:01
6:24
#1609
24M
24.00 mi12:36:522:33:546:256:12
6:12
#1556
40K
24.85 mi12:42:222:39:246:255:30
6:26
#1527
25.2M
25.20 mi12:44:352:41:376:252:13
6:26
#1501
Finish
26.22 mi12:50:462:47:486:246:11
6:04
#1446
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3841360736071593(Top 6%)1521(Top 10%)1521(Top 29%)
10K6.21 mi3.10 mi2960+8812823+7842823+7842357(Top 9%)2257(Top 15%)2257(Top 43%)
15K9.32 mi3.11 mi2430+5302324+4992324+4991593(Top 6%)1521(Top 10%)1521(Top 29%)
20K12.43 mi3.11 mi2185+2452093+2312093+2311621(Top 6%)1550(Top 10%)1550(Top 29%)
Half13.11 mi0.68 mi2163+222072+212072+211846(Top 7%)1771(Top 12%)1771(Top 34%)
25K15.53 mi2.42 mi1984+1791901+1711901+1711354(Top 5%)1294(Top 9%)1294(Top 24%)
30K18.64 mi3.11 mi1810+1741731+1701731+1701207(Top 5%)1151(Top 8%)1151(Top 22%)
20M20.00 mi1.36 mi1731+791655+761655+761117(Top 4%)1071(Top 7%)1071(Top 20%)
21M21.00 mi1.00 mi1682+491608+471608+471208(Top 5%)1150(Top 8%)1150(Top 22%)
35K21.75 mi0.75 mi1654+281581+271581+271294(Top 5%)1231(Top 8%)1231(Top 23%)
23M23.00 mi1.25 mi1609+451539+421539+421115(Top 4%)1055(Top 7%)1055(Top 20%)
24M24.00 mi1.00 mi1556+531487+521487+521035(Top 4%)981(Top 6%)981(Top 19%)
40K24.85 mi0.85 mi1527+291457+301457+301284(Top 5%)1211(Top 8%)1211(Top 23%)
25.2M25.20 mi0.35 mi1501+261432+251432+25429(Top 2%)404(Top 3%)404(Top 8%)
Finish26.22 mi1.02 mi1446+551379+531379+53905(Top 3%)865(Top 6%)865(Top 16%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×21stories
+97ft-345ft

Overall

1593

Males

1521

M18-39

1521

5K→10K

3.1 - 6.2 mi

Top 9%
×5stories
+79ft-138ft

Overall

2357

Males

2257

M18-39

2257

10K→15K

6.2 - 9.3 mi

Top 6%
×3stories
+67ft-78ft

Overall

1593

Males

1521

M18-39

1521

15K→20K

9.3 - 12.4 mi

Top 6%
×5stories
+106ft-86ft

Overall

1621

Males

1550

M18-39

1550

20K→Half

12.4 - 13.1 mi

Top 7%
×2stories
+19ft-37ft

Overall

1846

Males

1771

M18-39

1771

Half→25K

13.1 - 15.5 mi

Top 5%
×4stories
+66ft-88ft

Overall

1354

Males

1294

M18-39

1294

25K→30K

15.5 - 18.6 mi

Top 5%
×9stories
+181ft-148ft

Overall

1207

Males

1151

M18-39

1151

30K→20M

18.6 - 20.0 mi

Top 4%
×5stories
+64ft-50ft

Overall

1117

Males

1071

M18-39

1071

20M→21M

20.0 - 21.0 mi

Top 5%
×8stories
+106ft-24ft

Overall

1208

Males

1150

M18-39

1150

21M→35K

21.0 - 21.8 mi

Top 5%
×7stories
+17ft-86ft

Overall

1294

Males

1231

M18-39

1231

35K→23M

21.8 - 23.0 mi

Top 4%
×5stories
+23ft-63ft

Overall

1115

Males

1055

M18-39

1055

23M→24M

23.0 - 24.0 mi

Top 4%
×6stories
+12ft-82ft

Overall

1035

Males

981

M18-39

981

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1284

Males

1211

M18-39

1211

40K→25.2M

24.9 - 25.2 mi

Top 2%
×1story
+13ft-16ft

Overall

429

Males

404

M18-39

404

25.2M→Finish

25.2 - 26.2 mi

Top 3%
×2stories
+22ft-21ft

Overall

905

Males

865

M18-39

865

Passing Analysis

Category:
Athletes Passed
2453
Passed By
58
Net Change
+2395
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3841
5K → 10K8898+881#3841#2960
10K → 15K5311+530#2960#2430
15K → 20K2450+245#2430#2185
20K → Half253+22#2185#2163
Half → 25K1790+179#2163#1984
25K → 30K1806+174#1984#1810
30K → 20M812+79#1810#1731
20M → 21M512+49#1731#1682
21M → 35K324+28#1682#1654
35K → 23M549+45#1654#1609
23M → 24M596+53#1609#1556
24M → 40K4011+29#1556#1527
40K → 25.2M282+26#1527#1501
25.2M → Finish594+55#1501#1446
TOTALS245358+2395
📊

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