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BOSTON MARATHON 2023

Brock Walaska

Bib: 8967•M

FL

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 24%
Gender (Male)
#0 / 15176
Top 38%
Masters (Masters Men)
#0 / 9891
Top 24%
Division (M40-44)
#0 / 2241
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:34
Rank: #7871
Start → 5K
22:34 | 7:16/mi
10K· 6.21 mi
44:47
Rank: #7809 (+62)
5K → 10K
22:13 | 7:09/mi
15K· 9.32 mi
1:06:40
Rank: #7431 (+378)
10K → 15K
21:53 | 7:03/mi
20K· 12.43 mi
1:29:24
Rank: #7497 (-66)
15K → 20K
22:44 | 7:19/mi
Half· 13.11 mi
1:34:08
Rank: #7416 (+81)
20K → Half
4:44 | 6:56/mi
25K· 15.53 mi
1:51:21
Rank: #7180 (+236)
Half → 25K
17:13 | 7:06/mi
30K· 18.64 mi
2:13:50
Rank: #6869 (+311)
25K → 30K
22:29 | 7:14/mi
20M
2:23:50
Rank: #6779 (+90)
30K → 20M
10:00 | 7:22/mi
21M
2:31:43
Rank: #6724 (+55)
20M → 21M
7:53 | 7:53/mi
35K· 21.75 mi
2:37:05
Rank: #6690 (+34)
21M → 35K
5:22 | 7:10/mi
23M
2:47:01
Rank: #6761 (-71)
35K → 23M
9:56 | 7:56/mi
24M
2:54:25
Rank: #6729 (+32)
23M → 24M
7:24 | 7:24/mi
40K· 24.85 mi
3:00:37
Rank: #6634 (+95)
24M → 40K
6:12 | 7:15/mi
25.2M
3:03:22
Rank: #6613 (+21)
40K → 25.2M
2:45 | 7:58/mi
Finish· 26.22 mi
3:10:29
Rank: #6519 (+94)
25.2M → Finish
7:07 | 6:59/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:08
Pace7:11 /mi
2nd Half
Distance13.11 mi
Time1:36:21
Pace7:21 /mi
📊Positive Split: 2.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:3222:347:1622:34
7:16
-
10K
6.21 mi11:13:4544:477:1222:13
7:09
-0:07
15K
9.32 mi11:35:381:06:407:0921:53
7:03
-0:06
20K
12.43 mi11:58:221:29:247:1222:44
7:19
+0:16
Half
13.11 mi12:03:061:34:087:114:44
6:56
-0:23
25K
15.53 mi12:20:191:51:217:1017:13
7:06
+0:10
30K
18.64 mi12:42:482:13:507:1122:29
7:14
+0:08
20M
20.00 mi12:52:482:23:507:1110:00
7:22
+0:08
21M
21.00 mi13:00:412:31:437:137:53
7:53
+0:31
35K
21.75 mi13:06:032:37:057:135:22
7:10
-0:43
23M
23.00 mi13:15:592:47:017:169:56
7:56
+0:46
24M
24.00 mi13:23:232:54:257:167:24
7:24
-0:32
40K
24.85 mi13:29:353:00:377:166:12
7:15
-0:09
25.2M
25.20 mi13:32:203:03:227:172:45
7:58
+0:43
Finish
26.22 mi13:39:273:10:297:167:07
6:59
-0:59

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

6:56 /mi

Average Pace

7:16 /mi

Slowest Pace

7:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:49:55

89% of race

Time at Steady Pace

20:34

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:16 /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 mi10:51:3222:347:1622:34
7:16
#7871
10K
6.21 mi11:13:4544:477:1222:13
7:09
#7809
15K
9.32 mi11:35:381:06:407:0921:53
7:03
#7431
20K
12.43 mi11:58:221:29:247:1222:44
7:19
#7497
Half
13.11 mi12:03:061:34:087:114:44
6:56
#7416
25K
15.53 mi12:20:191:51:217:1017:13
7:06
#7180
30K
18.64 mi12:42:482:13:507:1122:29
7:14
#6869
20M
20.00 mi12:52:482:23:507:1110:00
7:22
#6779
21M
21.00 mi13:00:412:31:437:137:53
7:53
#6724
35K
21.75 mi13:06:032:37:057:135:22
7:10
#6690
23M
23.00 mi13:15:592:47:017:169:56
7:56
#6761
24M
24.00 mi13:23:232:54:257:167:24
7:24
#6729
40K
24.85 mi13:29:353:00:377:166:12
7:15
#6634
25.2M
25.20 mi13:32:203:03:227:172:45
7:58
#6613
Finish
26.22 mi13:39:273:10:297:167:07
6:59
#6519
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi7871688768876820(Top 26%)6104(Top 40%)6104(Top 272%)
10K6.21 mi3.10 mi7809+626847+406847+407763(Top 29%)6780(Top 45%)6780(Top 303%)
15K9.32 mi3.11 mi7431+3786578+2696578+2696820(Top 26%)6104(Top 40%)6104(Top 272%)
20K12.43 mi3.11 mi7497-666609-316609-317898(Top 30%)6816(Top 45%)6816(Top 304%)
Half13.11 mi0.68 mi7416+816548+616548+616206(Top 23%)5649(Top 37%)5649(Top 252%)
25K15.53 mi2.42 mi7180+2366366+1826366+1826116(Top 23%)5529(Top 36%)5529(Top 247%)
30K18.64 mi3.11 mi6869+3116113+2536113+2535693(Top 21%)5144(Top 34%)5144(Top 230%)
20M20.00 mi1.36 mi6779+906039+746039+745966(Top 22%)5266(Top 35%)5266(Top 235%)
21M21.00 mi1.00 mi6724+555981+585981+586629(Top 25%)5629(Top 37%)5629(Top 251%)
35K21.75 mi0.75 mi6690+345949+325949+326340(Top 24%)5468(Top 36%)5468(Top 244%)
23M23.00 mi1.25 mi6761-715986-375986-379265(Top 35%)7097(Top 47%)7097(Top 317%)
24M24.00 mi1.00 mi6729+325949+375949+377025(Top 26%)5721(Top 38%)5721(Top 255%)
40K24.85 mi0.85 mi6634+955859+905859+905156(Top 19%)4452(Top 29%)4452(Top 199%)
25.2M25.20 mi0.35 mi6613+215835+245835+246304(Top 24%)5140(Top 34%)5140(Top 229%)
Finish26.22 mi1.02 mi6519+945759+765759+765111(Top 19%)4346(Top 29%)4346(Top 194%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×21stories
+97ft-345ft

Overall

6820

Males

6104

M40-44

6104

5K→10K

3.1 - 6.2 mi

Top 29%
×5stories
+79ft-138ft

Overall

7763

Males

6780

M40-44

6780

10K→15K

6.2 - 9.3 mi

Top 26%
×3stories
+67ft-78ft

Overall

6820

Males

6104

M40-44

6104

15K→20K

9.3 - 12.4 mi

Top 30%
×5stories
+106ft-86ft

Overall

7898

Males

6816

M40-44

6816

20K→Half

12.4 - 13.1 mi

Top 23%
×2stories
+19ft-37ft

Overall

6206

Males

5649

M40-44

5649

Half→25K

13.1 - 15.5 mi

Top 23%
×4stories
+66ft-88ft

Overall

6116

Males

5529

M40-44

5529

25K→30K

15.5 - 18.6 mi

Top 21%
×9stories
+181ft-148ft

Overall

5693

Males

5144

M40-44

5144

30K→20M

18.6 - 20.0 mi

Top 22%
×5stories
+64ft-50ft

Overall

5966

Males

5266

M40-44

5266

20M→21M

20.0 - 21.0 mi

Top 25%
×8stories
+106ft-24ft

Overall

6629

Males

5629

M40-44

5629

21M→35K

21.0 - 21.8 mi

Top 24%
×7stories
+17ft-86ft

Overall

6340

Males

5468

M40-44

5468

35K→23M

21.8 - 23.0 mi

Top 35%
×5stories
+23ft-63ft

Overall

9265

Males

7097

M40-44

7097

23M→24M

23.0 - 24.0 mi

Top 26%
×6stories
+12ft-82ft

Overall

7025

Males

5721

M40-44

5721

24M→40K

24.0 - 24.9 mi

Top 19%
×1story
+6ft-20ft

Overall

5156

Males

4452

M40-44

4452

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6304

Males

5140

M40-44

5140

25.2M→Finish

25.2 - 26.2 mi

Top 19%
×2stories
+22ft-21ft

Overall

5111

Males

4346

M40-44

4346

Passing Analysis

Category:
Athletes Passed
2036
Passed By
684
Net Change
+1352
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7871
5K → 10K264202+62#7871#7809
10K → 15K40022+378#7809#7431
15K → 20K98164-66#7431#7497
20K → Half821+81#7497#7416
Half → 25K2437+236#7416#7180
25K → 30K32615+311#7180#6869
30K → 20M11121+90#6869#6779
20M → 21M9237+55#6779#6724
21M → 35K5117+34#6724#6690
35K → 23M51122-71#6690#6761
23M → 24M6230+32#6761#6729
24M → 40K11116+95#6729#6634
40K → 25.2M3817+21#6634#6613
25.2M → Finish10713+94#6613#6519
TOTALS2036684+1352
📊

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