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BOSTON MARATHON 2023

Zac Brokenrope

Bib: 29453•M

MA

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

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
10:24/mi
32:19
↑ 97↓ 3451.5%
10K· 6.21 mi
10:26/mi
1:04:43
↑ 79↓ 1380.4%
15K· 9.32 mi
10:22/mi
1:36:54
↑ 67↓ 78
20K· 12.43 mi
10:48/mi
2:10:26
↑ 106↓ 860.1%
Half· 13.11 mi
10:07/mi
2:17:20
↑ 19↓ 370.5%
25K· 15.53 mi
10:30/mi
2:42:48
↑ 66↓ 880.2%
30K· 18.64 mi
10:54/mi
3:16:40
↑ 181↓ 1480.2%
20M
11:03/mi
3:31:41
↑ 64↓ 500.2%
21M
12:21/mi
3:44:02
↑ 106↓ 241.6%
35K· 21.75 mi
10:46/mi
3:52:05
↑ 17↓ 861.7%
23M
10:51/mi
4:05:40
↑ 23↓ 630.6%
24M
10:42/mi
4:16:22
↓ 821.3%
40K· 24.85 mi
11:00/mi
4:25:46
↓ 200.3%
25.2M
11:50/mi
4:29:51
↑ 13↓ 160.2%
Finish· 26.22 mi
10:37/mi
4:40:40
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:17:20
Pace10:29 /mi
2nd Half
Distance13.11 mi
Time2:23:20
Pace10:56 /mi
📊Positive Split: 4.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:0332:1910:2432:19
10:24
-
10K
6.21 mi12:22:271:04:4310:2532:24
10:26
+0:02
15K
9.32 mi12:54:381:36:5410:2432:11
10:22
-0:04
20K
12.43 mi13:28:102:10:2610:3033:32
10:48
+0:26
Half
13.11 mi13:35:042:17:2010:296:54
10:07
-0:41
25K
15.53 mi14:00:322:42:4810:2925:28
10:30
+0:23
30K
18.64 mi14:34:243:16:4010:3333:52
10:54
+0:24
20M
20.00 mi14:49:253:31:4110:3515:01
11:03
+0:09
21M
21.00 mi15:01:463:44:0210:4012:21
12:21
+1:18
35K
21.75 mi15:09:493:52:0510:408:03
10:46
-1:35
23M
23.00 mi15:23:244:05:4010:4113:35
10:51
+0:05
24M
24.00 mi15:34:064:16:2210:4110:42
10:42
-0:09
40K
24.85 mi15:43:304:25:4610:429:24
11:00
+0:18
25.2M
25.20 mi15:47:354:29:5110:434:05
11:50
+0:50
Finish
26.22 mi15:58:244:40:4010:4310:49
10:37
-1:13

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

10:07 /mi

Average Pace

10:43 /mi

Slowest Pace

12:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:43:48

37% of race

Time at Steady Pace

2:25:25

52% of race

Time at Slower Pace

31:27

11% of race

Average Pace: 10:42 /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 mi11:50:0332:1910:2432:19
10:24
#24474
10K
6.21 mi12:22:271:04:4310:2532:24
10:26
#24520
15K
9.32 mi12:54:381:36:5410:2432:11
10:22
#24422
20K
12.43 mi13:28:102:10:2610:3033:32
10:48
#24406
Half
13.11 mi13:35:042:17:2010:296:54
10:07
#24366
25K
15.53 mi14:00:322:42:4810:2925:28
10:30
#24128
30K
18.64 mi14:34:243:16:4010:3333:52
10:54
#23902
20M
20.00 mi14:49:253:31:4110:3515:01
11:03
#23824
21M
21.00 mi15:01:463:44:0210:4012:21
12:21
#23801
35K
21.75 mi15:09:493:52:0510:408:03
10:46
#23777
23M
23.00 mi15:23:244:05:4010:4113:35
10:51
#23691
24M
24.00 mi15:34:064:16:2210:4110:42
10:42
#23641
40K
24.85 mi15:43:304:25:4610:429:24
11:00
#23604
25.2M
25.20 mi15:47:354:29:5110:434:05
11:50
#23596
Finish
26.22 mi15:58:244:40:4010:4310:49
10:37
#23585
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi24474143121431224203(Top 91%)14175(Top 93%)14175(Top 268%)
10K6.21 mi3.10 mi24520-4614329-1714329-1724553(Top 92%)14333(Top 94%)14333(Top 271%)
15K9.32 mi3.11 mi24422+9814282+4714282+4724203(Top 91%)14175(Top 93%)14175(Top 268%)
20K12.43 mi3.11 mi24406+1614264+1814264+1824309(Top 91%)14195(Top 94%)14195(Top 269%)
Half13.11 mi0.68 mi24366+4014241+2314241+2323500(Top 88%)13849(Top 91%)13849(Top 262%)
25K15.53 mi2.42 mi24128+23814129+11214129+11223207(Top 87%)13689(Top 90%)13689(Top 259%)
30K18.64 mi3.11 mi23902+22614018+11114018+11122941(Top 86%)13486(Top 89%)13486(Top 255%)
20M20.00 mi1.36 mi23824+7813972+4613972+4622785(Top 86%)13364(Top 88%)13364(Top 253%)
21M21.00 mi1.00 mi23801+2313952+2013952+2023259(Top 87%)13554(Top 89%)13554(Top 256%)
35K21.75 mi0.75 mi23777+2413937+1513937+1522846(Top 86%)13315(Top 88%)13315(Top 252%)
23M23.00 mi1.25 mi23691+8613891+4613891+4622056(Top 83%)12933(Top 85%)12933(Top 245%)
24M24.00 mi1.00 mi23641+5013857+3413857+3422456(Top 84%)13093(Top 86%)13093(Top 248%)
40K24.85 mi0.85 mi23604+3713834+2313834+2322340(Top 84%)13005(Top 86%)13005(Top 246%)
25.2M25.20 mi0.35 mi23596+813827+713827+722211(Top 83%)12952(Top 85%)12952(Top 245%)
Finish26.22 mi1.02 mi23585+1113807+2013807+2023236(Top 87%)13450(Top 89%)13450(Top 254%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 91%
×21story building
+97ft-345ft

Overall

24203

Males

14175

M18-39

14175

5K→10K

3.1 - 6.2 mi

Top 92%
×5story building
+79ft-138ft

Overall

24553

Males

14333

M18-39

14333

10K→15K

6.2 - 9.3 mi

Top 91%
×3story building
+67ft-78ft

Overall

24203

Males

14175

M18-39

14175

15K→20K

9.3 - 12.4 mi

Top 91%
×5story building
+106ft-86ft

Overall

24309

Males

14195

M18-39

14195

20K→Half

12.4 - 13.1 mi

Top 88%
×2story building
+19ft-37ft

Overall

23500

Males

13849

M18-39

13849

Half→25K

13.1 - 15.5 mi

Top 87%
×4story building
+66ft-88ft

Overall

23207

Males

13689

M18-39

13689

25K→30K

15.5 - 18.6 mi

Top 86%
×9story building
+181ft-148ft

Overall

22941

Males

13486

M18-39

13486

30K→20M

18.6 - 20.0 mi

Top 86%
×5story building
+64ft-50ft

Overall

22785

Males

13364

M18-39

13364

20M→21M

20.0 - 21.0 mi

Top 87%
×8story building
+106ft-24ft

Overall

23259

Males

13554

M18-39

13554

21M→35K

21.0 - 21.8 mi

Top 86%
×7story building
+17ft-86ft

Overall

22846

Males

13315

M18-39

13315

35K→23M

21.8 - 23.0 mi

Top 83%
×5story building
+23ft-63ft

Overall

22056

Males

12933

M18-39

12933

23M→24M

23.0 - 24.0 mi

Top 84%
×6story building
+12ft-82ft

Overall

22456

Males

13093

M18-39

13093

24M→40K

24.0 - 24.9 mi

Top 84%
×1story
+6ft-20ft

Overall

22340

Males

13005

M18-39

13005

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1story
+13ft-16ft

Overall

22211

Males

12952

M18-39

12952

25.2M→Finish

25.2 - 26.2 mi

Top 87%
×2story building
+22ft-21ft

Overall

23236

Males

13450

M18-39

13450

Passing Analysis

Category:
Athletes Passed
1430
Passed By
541
Net Change
+889
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24474
5K → 10K169215-46#24474#24520
10K → 15K17981+98#24520#24422
15K → 20K10488+16#24422#24406
20K → Half455+40#24406#24366
Half → 25K2435+238#24366#24128
25K → 30K24418+226#24128#23902
30K → 20M8810+78#23902#23824
20M → 21M6340+23#23824#23801
21M → 35K4117+24#23801#23777
35K → 23M926+86#23777#23691
23M → 24M6010+50#23691#23641
24M → 40K5013+37#23641#23604
40K → 25.2M179+8#23604#23596
25.2M → Finish3524+11#23596#23585
TOTALS1430541+889
📊

Passing Visuals

Category:
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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