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BOSTON MARATHON 2023

Brian Word-Sims

Bib: 25326•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 9%
Gender (Male)
#0 / 15176
Top 15%
Division (M18-39)
#0 / 5285
Top 33%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:08
Rank: #4672
Start → 5K
21:08 | 6:48/mi
10K· 6.21 mi
41:51
Rank: #4318 (+354)
5K → 10K
20:43 | 6:40/mi
15K· 9.32 mi
1:02:55
Rank: #4500 (-182)
10K → 15K
21:04 | 6:47/mi
20K· 12.43 mi
1:23:48
Rank: #4282 (+218)
15K → 20K
20:53 | 6:43/mi
Half· 13.11 mi
1:28:18
Rank: #4221 (+61)
20K → Half
4:30 | 6:36/mi
25K· 15.53 mi
1:44:13
Rank: #3854 (+367)
Half → 25K
15:55 | 6:34/mi
30K· 18.64 mi
2:04:35
Rank: #3312 (+542)
25K → 30K
20:22 | 6:33/mi
20M
2:13:33
Rank: #3128 (+184)
30K → 20M
8:58 | 6:36/mi
21M
2:20:18
Rank: #2957 (+171)
20M → 21M
6:45 | 6:45/mi
35K· 21.75 mi
2:25:01
Rank: #2869 (+88)
21M → 35K
4:43 | 6:18/mi
23M
2:33:04
Rank: #2683 (+186)
35K → 23M
8:03 | 6:26/mi
24M
2:39:19
Rank: #2552 (+131)
23M → 24M
6:15 | 6:15/mi
40K· 24.85 mi
2:44:48
Rank: #2469 (+83)
24M → 40K
5:29 | 6:25/mi
25.2M
2:47:09
Rank: #2430 (+39)
40K → 25.2M
2:21 | 6:49/mi
Finish· 26.22 mi
2:53:27
Rank: #2359 (+71)
25.2M → Finish
6:18 | 6:11/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:28:18
Pace6:44 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:25:09
Pace6:30 /mi
📊Negative Split: 3.6% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:36:4021:086:4821:08
6:48
-
10K
6.21 mi11:57:2341:516:4420:43
6:40
-0:08
15K
9.32 mi12:18:271:02:556:4521:04
6:47
+0:07
20K
12.43 mi12:39:201:23:486:4520:53
6:43
-0:04
Half
13.11 mi12:43:501:28:186:444:30
6:36
-0:07
25K
15.53 mi12:59:451:44:136:4315:55
6:34
-0:02
30K
18.64 mi13:20:072:04:356:4120:22
6:33
-0:01
20M
20.00 mi13:29:052:13:336:418:58
6:36
+0:03
21M
21.00 mi13:35:502:20:186:416:45
6:45
+0:09
35K
21.75 mi13:40:332:25:016:404:43
6:18
-0:27
23M
23.00 mi13:48:362:33:046:398:03
6:26
+0:08
24M
24.00 mi13:54:512:39:196:386:15
6:15
-0:11
40K
24.85 mi14:00:202:44:486:385:29
6:25
+0:10
25.2M
25.20 mi14:02:412:47:096:382:21
6:49
+0:24
Finish
26.22 mi14:08:592:53:276:376:18
6:11
-0:38

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

6:11 /mi

Average Pace

6:37 /mi

Slowest Pace

6:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:51:06

99% of race

Time at Steady Pace

2:21

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:37 /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 mi11:36:4021:086:4821:08
6:48
#4672
10K
6.21 mi11:57:2341:516:4420:43
6:40
#4318
15K
9.32 mi12:18:271:02:556:4521:04
6:47
#4500
20K
12.43 mi12:39:201:23:486:4520:53
6:43
#4282
Half
13.11 mi12:43:501:28:186:444:30
6:36
#4221
25K
15.53 mi12:59:451:44:136:4315:55
6:34
#3854
30K
18.64 mi13:20:072:04:356:4120:22
6:33
#3312
20M
20.00 mi13:29:052:13:336:418:58
6:36
#3128
21M
21.00 mi13:35:502:20:186:416:45
6:45
#2957
35K
21.75 mi13:40:332:25:016:404:43
6:18
#2869
23M
23.00 mi13:48:362:33:046:398:03
6:26
#2683
24M
24.00 mi13:54:512:39:196:386:15
6:15
#2552
40K
24.85 mi14:00:202:44:486:385:29
6:25
#2469
25.2M
25.20 mi14:02:412:47:096:382:21
6:49
#2430
Finish
26.22 mi14:08:592:53:276:376:18
6:11
#2359
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4672434643464904(Top 18%)4555(Top 30%)4555(Top 86%)
10K6.21 mi3.10 mi4318+3544047+2994047+2994011(Top 15%)3770(Top 25%)3770(Top 71%)
15K9.32 mi3.11 mi4500-1824204-1574204-1574904(Top 18%)4555(Top 30%)4555(Top 86%)
20K12.43 mi3.11 mi4282+2184012+1924012+1923719(Top 14%)3513(Top 23%)3513(Top 66%)
Half13.11 mi0.68 mi4221+613956+563956+563329(Top 13%)3160(Top 21%)3160(Top 60%)
25K15.53 mi2.42 mi3854+3673636+3203636+3202508(Top 9%)2399(Top 16%)2399(Top 45%)
30K18.64 mi3.11 mi3312+5423143+4933143+4931790(Top 7%)1713(Top 11%)1713(Top 32%)
20M20.00 mi1.36 mi3128+1842975+1682975+1681865(Top 7%)1778(Top 12%)1778(Top 34%)
21M21.00 mi1.00 mi2957+1712818+1572818+1571274(Top 5%)1216(Top 8%)1216(Top 23%)
35K21.75 mi0.75 mi2869+882734+842734+841614(Top 6%)1534(Top 10%)1534(Top 29%)
23M23.00 mi1.25 mi2683+1862564+1702564+1701211(Top 5%)1145(Top 8%)1145(Top 22%)
24M24.00 mi1.00 mi2552+1312438+1262438+1261213(Top 5%)1150(Top 8%)1150(Top 22%)
40K24.85 mi0.85 mi2469+832359+792359+791260(Top 5%)1188(Top 8%)1188(Top 22%)
25.2M25.20 mi0.35 mi2430+392322+372322+371227(Top 5%)1166(Top 8%)1166(Top 22%)
Finish26.22 mi1.02 mi2359+712256+662256+661223(Top 5%)1164(Top 8%)1164(Top 22%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21stories
+97ft-345ft

Overall

4904

Males

4555

M18-39

4555

5K→10K

3.1 - 6.2 mi

Top 15%
×5stories
+79ft-138ft

Overall

4011

Males

3770

M18-39

3770

10K→15K

6.2 - 9.3 mi

Top 18%
×3stories
+67ft-78ft

Overall

4904

Males

4555

M18-39

4555

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

3719

Males

3513

M18-39

3513

20K→Half

12.4 - 13.1 mi

Top 13%
×2stories
+19ft-37ft

Overall

3329

Males

3160

M18-39

3160

Half→25K

13.1 - 15.5 mi

Top 9%
×4stories
+66ft-88ft

Overall

2508

Males

2399

M18-39

2399

25K→30K

15.5 - 18.6 mi

Top 7%
×9stories
+181ft-148ft

Overall

1790

Males

1713

M18-39

1713

30K→20M

18.6 - 20.0 mi

Top 7%
×5stories
+64ft-50ft

Overall

1865

Males

1778

M18-39

1778

20M→21M

20.0 - 21.0 mi

Top 5%
×8stories
+106ft-24ft

Overall

1274

Males

1216

M18-39

1216

21M→35K

21.0 - 21.8 mi

Top 6%
×7stories
+17ft-86ft

Overall

1614

Males

1534

M18-39

1534

35K→23M

21.8 - 23.0 mi

Top 5%
×5stories
+23ft-63ft

Overall

1211

Males

1145

M18-39

1145

23M→24M

23.0 - 24.0 mi

Top 5%
×6stories
+12ft-82ft

Overall

1213

Males

1150

M18-39

1150

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1260

Males

1188

M18-39

1188

40K→25.2M

24.9 - 25.2 mi

Top 5%
×1story
+13ft-16ft

Overall

1227

Males

1166

M18-39

1166

25.2M→Finish

25.2 - 26.2 mi

Top 5%
×2stories
+22ft-21ft

Overall

1223

Males

1164

M18-39

1164

Passing Analysis

Category:
Athletes Passed
2686
Passed By
373
Net Change
+2313
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4672
5K → 10K42975+354#4672#4318
10K → 15K73255-182#4318#4500
15K → 20K23921+218#4500#4282
20K → Half643+61#4282#4221
Half → 25K3681+367#4221#3854
25K → 30K5420+542#3854#3312
30K → 20M1862+184#3312#3128
20M → 21M1754+171#3128#2957
21M → 35K891+88#2957#2869
35K → 23M1871+186#2869#2683
23M → 24M1310+131#2683#2552
24M → 40K874+83#2552#2469
40K → 25.2M401+39#2469#2430
25.2M → Finish765+71#2430#2359
TOTALS2686373+2313
📊

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