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BOSTON MARATHON 2023

Brian Baldwin

Bib: 25609•M

CT

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 48%
Gender (Male)
#0 / 15176
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:33
Rank: #15610
Start → 5K
25:33 | 8:13/mi
10K· 6.21 mi
50:11
Rank: #14937 (+673)
5K → 10K
24:38 | 7:56/mi
15K· 9.32 mi
1:14:57
Rank: #14665 (+272)
10K → 15K
24:46 | 7:58/mi
20K· 12.43 mi
1:39:26
Rank: #14112 (+553)
15K → 20K
24:29 | 7:53/mi
Half· 13.11 mi
1:44:46
Rank: #14045 (+67)
20K → Half
5:20 | 7:49/mi
25K· 15.53 mi
2:04:48
Rank: #14134 (-89)
Half → 25K
20:02 | 8:16/mi
30K· 18.64 mi
2:30:59
Rank: #14099 (+35)
25K → 30K
26:11 | 8:26/mi
20M
2:42:14
Rank: #13918 (+181)
30K → 20M
11:15 | 8:17/mi
21M
2:51:06
Rank: #13819 (+99)
20M → 21M
8:52 | 8:52/mi
35K· 21.75 mi
2:57:00
Rank: #13705 (+114)
21M → 35K
5:54 | 7:53/mi
23M
3:07:10
Rank: #13497 (+208)
35K → 23M
10:10 | 8:07/mi
24M
3:14:54
Rank: #13274 (+223)
23M → 24M
7:44 | 7:44/mi
40K· 24.85 mi
3:21:36
Rank: #13080 (+194)
24M → 40K
6:42 | 7:50/mi
25.2M
3:24:25
Rank: #12992 (+88)
40K → 25.2M
2:49 | 8:10/mi
Finish· 26.22 mi
3:31:55
Rank: #12786 (+206)
25.2M → Finish
7:30 | 7:22/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:46
Pace7:59 /mi
2nd Half
Distance13.11 mi
Time1:47:09
Pace8:10 /mi
📊Positive Split: 2.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:4125:338:1325:33
8:13
-
10K
6.21 mi12:09:1950:118:0524:38
7:56
-0:17
15K
9.32 mi12:34:051:14:578:0224:46
7:58
+0:02
20K
12.43 mi12:58:341:39:268:0024:29
7:53
-0:05
Half
13.11 mi13:03:541:44:467:595:20
7:49
-0:04
25K
15.53 mi13:23:562:04:488:0220:02
8:16
+0:27
30K
18.64 mi13:50:072:30:598:0626:11
8:26
+0:10
20M
20.00 mi14:01:222:42:148:0711:15
8:17
-0:09
21M
21.00 mi14:10:142:51:068:098:52
8:52
+0:35
35K
21.75 mi14:16:082:57:008:085:54
7:53
-0:59
23M
23.00 mi14:26:183:07:108:0810:10
8:07
+0:14
24M
24.00 mi14:34:023:14:548:077:44
7:44
-0:23
40K
24.85 mi14:40:443:21:368:076:42
7:50
+0:06
25.2M
25.20 mi14:43:333:24:258:072:49
8:10
+0:20
Finish
26.22 mi14:51:033:31:558:057:30
7:22
-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

7:22 /mi

Average Pace

8:05 /mi

Slowest Pace

8:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

15:14

7% of race

Time at Steady Pace

1:41:59

48% of race

Time at Slower Pace

1:34:42

45% of race

Average Pace: 8:05 /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 mi11:44:4125:338:1325:33
8:13
#15610
10K
6.21 mi12:09:1950:118:0524:38
7:56
#14937
15K
9.32 mi12:34:051:14:578:0224:46
7:58
#14665
20K
12.43 mi12:58:341:39:268:0024:29
7:53
#14112
Half
13.11 mi13:03:541:44:467:595:20
7:49
#14045
25K
15.53 mi13:23:562:04:488:0220:02
8:16
#14134
30K
18.64 mi13:50:072:30:598:0626:11
8:26
#14099
20M
20.00 mi14:01:222:42:148:0711:15
8:17
#13918
21M
21.00 mi14:10:142:51:068:098:52
8:52
#13819
35K
21.75 mi14:16:082:57:008:085:54
7:53
#13705
23M
23.00 mi14:26:183:07:108:0810:10
8:07
#13497
24M
24.00 mi14:34:023:14:548:077:44
7:44
#13274
40K
24.85 mi14:40:443:21:368:076:42
7:50
#13080
25.2M
25.20 mi14:43:333:24:258:072:49
8:10
#12992
Finish
26.22 mi14:51:033:31:558:057:30
7:22
#12786
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi15610105441054414145(Top 53%)9953(Top 66%)9953(Top 188%)
10K6.21 mi3.10 mi14937+67310301+24310301+24314219(Top 53%)10009(Top 66%)10009(Top 189%)
15K9.32 mi3.11 mi14665+27210189+11210189+11214145(Top 53%)9953(Top 66%)9953(Top 188%)
20K12.43 mi3.11 mi14112+5539942+2479942+24712430(Top 47%)9197(Top 61%)9197(Top 174%)
Half13.11 mi0.68 mi14045+679917+259917+2512820(Top 48%)9413(Top 62%)9413(Top 178%)
25K15.53 mi2.42 mi14134-899927-109927-1014671(Top 55%)10017(Top 66%)10017(Top 190%)
30K18.64 mi3.11 mi14099+359879+489879+4813847(Top 52%)9589(Top 63%)9589(Top 181%)
20M20.00 mi1.36 mi13918+1819791+889791+8812202(Top 46%)8794(Top 58%)8794(Top 166%)
21M21.00 mi1.00 mi13819+999735+569735+5612623(Top 47%)8861(Top 58%)8861(Top 168%)
35K21.75 mi0.75 mi13705+1149678+579678+5711280(Top 42%)8262(Top 54%)8262(Top 156%)
23M23.00 mi1.25 mi13497+2089563+1159563+11510601(Top 40%)7777(Top 51%)7777(Top 147%)
24M24.00 mi1.00 mi13274+2239456+1079456+1079305(Top 35%)7057(Top 47%)7057(Top 134%)
40K24.85 mi0.85 mi13080+1949341+1159341+1158909(Top 33%)6771(Top 45%)6771(Top 128%)
25.2M25.20 mi0.35 mi12992+889295+469295+467518(Top 28%)5918(Top 39%)5918(Top 112%)
Finish26.22 mi1.02 mi12786+2069190+1059190+1057514(Top 28%)5881(Top 39%)5881(Top 111%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21stories
+97ft-345ft

Overall

14145

Males

9953

M18-39

9953

5K→10K

3.1 - 6.2 mi

Top 53%
×5stories
+79ft-138ft

Overall

14219

Males

10009

M18-39

10009

10K→15K

6.2 - 9.3 mi

Top 53%
×3stories
+67ft-78ft

Overall

14145

Males

9953

M18-39

9953

15K→20K

9.3 - 12.4 mi

Top 47%
×5stories
+106ft-86ft

Overall

12430

Males

9197

M18-39

9197

20K→Half

12.4 - 13.1 mi

Top 48%
×2stories
+19ft-37ft

Overall

12820

Males

9413

M18-39

9413

Half→25K

13.1 - 15.5 mi

Top 55%
×4stories
+66ft-88ft

Overall

14671

Males

10017

M18-39

10017

25K→30K

15.5 - 18.6 mi

Top 52%
×9stories
+181ft-148ft

Overall

13847

Males

9589

M18-39

9589

30K→20M

18.6 - 20.0 mi

Top 46%
×5stories
+64ft-50ft

Overall

12202

Males

8794

M18-39

8794

20M→21M

20.0 - 21.0 mi

Top 47%
×8stories
+106ft-24ft

Overall

12623

Males

8861

M18-39

8861

21M→35K

21.0 - 21.8 mi

Top 42%
×7stories
+17ft-86ft

Overall

11280

Males

8262

M18-39

8262

35K→23M

21.8 - 23.0 mi

Top 40%
×5stories
+23ft-63ft

Overall

10601

Males

7777

M18-39

7777

23M→24M

23.0 - 24.0 mi

Top 35%
×6stories
+12ft-82ft

Overall

9305

Males

7057

M18-39

7057

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

8909

Males

6771

M18-39

6771

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

7518

Males

5918

M18-39

5918

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2stories
+22ft-21ft

Overall

7514

Males

5881

M18-39

5881

Passing Analysis

Category:
Athletes Passed
3479
Passed By
655
Net Change
+2824
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15610
5K → 10K76087+673#15610#14937
10K → 15K35280+272#14937#14665
15K → 20K56815+553#14665#14112
20K → Half7710+67#14112#14045
Half → 25K109198-89#14045#14134
25K → 30K212177+35#14134#14099
30K → 20M20322+181#14099#13918
20M → 21M13637+99#13918#13819
21M → 35K1217+114#13819#13705
35K → 23M21911+208#13705#13497
23M → 24M2274+223#13497#13274
24M → 40K1962+194#13274#13080
40K → 25.2M902+88#13080#12992
25.2M → Finish2093+206#12992#12786
TOTALS3479655+2824
📊

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