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BOSTON MARATHON 2023

Chris Baldwin

Bib: 826•M

IL

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 9%
Gender (Male)
#0 / 15176
Top 14%
Division (M18-39)
#0 / 5285
Top 32%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:27
Rank: #604
Start → 5K
18:27 | 5:56/mi
10K· 6.21 mi
36:58
Rank: #634 (-30)
5K → 10K
18:31 | 5:58/mi
15K· 9.32 mi
55:54
Rank: #718 (-84)
10K → 15K
18:56 | 6:06/mi
20K· 12.43 mi
1:15:36
Rank: #863 (-145)
15K → 20K
19:42 | 6:20/mi
Half· 13.11 mi
1:20:11
Rank: #960 (-97)
20K → Half
4:35 | 6:43/mi
25K· 15.53 mi
1:36:29
Rank: #1160 (-200)
Half → 25K
16:18 | 6:43/mi
30K· 18.64 mi
1:58:27
Rank: #1564 (-404)
25K → 30K
21:58 | 7:04/mi
20M
2:08:18
Rank: #1729 (-165)
30K → 20M
9:51 | 7:15/mi
21M
2:15:32
Rank: #1786 (-57)
20M → 21M
7:14 | 7:15/mi
35K· 21.75 mi
2:20:45
Rank: #1883 (-97)
21M → 35K
5:13 | 6:58/mi
23M
2:29:55
Rank: #2024 (-141)
35K → 23M
9:10 | 7:19/mi
24M
2:36:52
Rank: #2097 (-73)
23M → 24M
6:57 | 6:57/mi
40K· 24.85 mi
2:43:04
Rank: #2180 (-83)
24M → 40K
6:12 | 7:15/mi
25.2M
2:45:47
Rank: #2212 (-32)
40K → 25.2M
2:43 | 7:53/mi
Finish· 26.22 mi
2:52:58
Rank: #2267 (-55)
25.2M → Finish
7:11 | 7:03/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:20:11
Pace6:07 /mi
2nd Half
Distance13.11 mi
Time1:32:47
Pace7:05 /mi
📊Positive Split: 15.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:4418:275:5618:27
5:56
-
10K
6.21 mi10:37:1536:585:5718:31
5:58
+0:02
15K
9.32 mi10:56:1155:546:0018:56
6:06
+0:08
20K
12.43 mi11:15:531:15:366:0519:42
6:20
+0:14
Half
13.11 mi11:20:281:20:116:074:35
6:43
+0:23
25K
15.53 mi11:36:461:36:296:1316:18
6:43
0:00
30K
18.64 mi11:58:441:58:276:2121:58
7:04
+0:21
20M
20.00 mi12:08:352:08:186:259:51
7:15
+0:11
21M
21.00 mi12:15:492:15:326:277:14
7:15
0:00
35K
21.75 mi12:21:022:20:456:285:13
6:58
-0:17
23M
23.00 mi12:30:122:29:556:319:10
7:19
+0:21
24M
24.00 mi12:37:092:36:526:326:57
6:57
-0:22
40K
24.85 mi12:43:212:43:046:346:12
7:15
+0:18
25.2M
25.20 mi12:46:042:45:476:352:43
7:53
+0:38
Finish
26.22 mi12:53:152:52:586:367:11
7:03
-0:50

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

5:56 /mi

Average Pace

6:36 /mi

Slowest Pace

7:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:15:36

44% of race

Time at Steady Pace

1:02:12

36% of race

Time at Slower Pace

35:10

20% of race

Average Pace: 6:36 /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 mi10:18:4418:275:5618:27
5:56
#604
10K
6.21 mi10:37:1536:585:5718:31
5:58
#634
15K
9.32 mi10:56:1155:546:0018:56
6:06
#718
20K
12.43 mi11:15:531:15:366:0519:42
6:20
#863
Half
13.11 mi11:20:281:20:116:074:35
6:43
#960
25K
15.53 mi11:36:461:36:296:1316:18
6:43
#1160
30K
18.64 mi11:58:441:58:276:2121:58
7:04
#1564
20M
20.00 mi12:08:352:08:186:259:51
7:15
#1729
21M
21.00 mi12:15:492:15:326:277:14
7:15
#1786
35K
21.75 mi12:21:022:20:456:285:13
6:58
#1883
23M
23.00 mi12:30:122:29:556:319:10
7:19
#2024
24M
24.00 mi12:37:092:36:526:326:57
6:57
#2097
40K
24.85 mi12:43:212:43:046:346:12
7:15
#2180
25.2M
25.20 mi12:46:042:45:476:352:43
7:53
#2212
Finish
26.22 mi12:53:152:52:586:367:11
7:03
#2267
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 mi604560560959(Top 4%)910(Top 6%)910(Top 17%)
10K6.21 mi3.10 mi634-30590-30590-30722(Top 3%)678(Top 4%)678(Top 13%)
15K9.32 mi3.11 mi718-84674-84674-84959(Top 4%)910(Top 6%)910(Top 17%)
20K12.43 mi3.11 mi863-145816-142816-1421573(Top 6%)1504(Top 10%)1504(Top 28%)
Half13.11 mi0.68 mi960-97910-94910-944641(Top 17%)4304(Top 28%)4304(Top 81%)
25K15.53 mi2.42 mi1160-2001105-1951105-1953518(Top 13%)3323(Top 22%)3323(Top 63%)
30K18.64 mi3.11 mi1564-4041495-3901495-3904767(Top 18%)4396(Top 29%)4396(Top 83%)
20M20.00 mi1.36 mi1729-1651653-1581653-1585329(Top 20%)4791(Top 32%)4791(Top 91%)
21M21.00 mi1.00 mi1786-571710-571710-573312(Top 12%)3082(Top 20%)3082(Top 58%)
35K21.75 mi0.75 mi1883-971802-921802-925123(Top 19%)4574(Top 30%)4574(Top 87%)
23M23.00 mi1.25 mi2024-1411940-1381940-1385391(Top 20%)4744(Top 31%)4744(Top 90%)
24M24.00 mi1.00 mi2097-732012-722012-724389(Top 16%)3964(Top 26%)3964(Top 75%)
40K24.85 mi0.85 mi2180-832092-802092-805117(Top 19%)4413(Top 29%)4413(Top 84%)
25.2M25.20 mi0.35 mi2212-322123-312123-315688(Top 21%)4708(Top 31%)4708(Top 89%)
Finish26.22 mi1.02 mi2267-552171-482171-485462(Top 21%)4554(Top 30%)4554(Top 86%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 4%
×21stories
+97ft-345ft

Overall

959

Males

910

M18-39

910

5K→10K

3.1 - 6.2 mi

Top 3%
×5stories
+79ft-138ft

Overall

722

Males

678

M18-39

678

10K→15K

6.2 - 9.3 mi

Top 4%
×3stories
+67ft-78ft

Overall

959

Males

910

M18-39

910

15K→20K

9.3 - 12.4 mi

Top 6%
×5stories
+106ft-86ft

Overall

1573

Males

1504

M18-39

1504

20K→Half

12.4 - 13.1 mi

Top 17%
×2stories
+19ft-37ft

Overall

4641

Males

4304

M18-39

4304

Half→25K

13.1 - 15.5 mi

Top 13%
×4stories
+66ft-88ft

Overall

3518

Males

3323

M18-39

3323

25K→30K

15.5 - 18.6 mi

Top 18%
×9stories
+181ft-148ft

Overall

4767

Males

4396

M18-39

4396

30K→20M

18.6 - 20.0 mi

Top 20%
×5stories
+64ft-50ft

Overall

5329

Males

4791

M18-39

4791

20M→21M

20.0 - 21.0 mi

Top 12%
×8stories
+106ft-24ft

Overall

3312

Males

3082

M18-39

3082

21M→35K

21.0 - 21.8 mi

Top 19%
×7stories
+17ft-86ft

Overall

5123

Males

4574

M18-39

4574

35K→23M

21.8 - 23.0 mi

Top 20%
×5stories
+23ft-63ft

Overall

5391

Males

4744

M18-39

4744

23M→24M

23.0 - 24.0 mi

Top 16%
×6stories
+12ft-82ft

Overall

4389

Males

3964

M18-39

3964

24M→40K

24.0 - 24.9 mi

Top 19%
×1story
+6ft-20ft

Overall

5117

Males

4413

M18-39

4413

40K→25.2M

24.9 - 25.2 mi

Top 21%
×1story
+13ft-16ft

Overall

5688

Males

4708

M18-39

4708

25.2M→Finish

25.2 - 26.2 mi

Top 21%
×2stories
+22ft-21ft

Overall

5462

Males

4554

M18-39

4554

Passing Analysis

Category:
Athletes Passed
87
Passed By
1750
Net Change
-1663
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#604
5K → 10K1444-30#604#634
10K → 15K387-84#634#718
15K → 20K4149-145#718#863
20K → Half097-97#863#960
Half → 25K2202-200#960#1160
25K → 30K5409-404#1160#1564
30K → 20M3168-165#1564#1729
20M → 21M1067-57#1729#1786
21M → 35K5102-97#1786#1883
35K → 23M12153-141#1883#2024
23M → 24M780-73#2024#2097
24M → 40K891-83#2097#2180
40K → 25.2M133-32#2180#2212
25.2M → Finish1368-55#2212#2267
TOTALS871750-1663
📊

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