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BOSTON MARATHON 2023

Brian Rockenbach

Bib: 4419•M

WA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 16%
Gender (Male)
#0 / 15176
Top 26%
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
20:55
Rank: #3956
Start → 5K
6:44/mi
20:55 split
10K· 6.21 mi
42:01
Rank: #4610 (-654)
5K → 10K
6:47/mi
21:06 split
15K· 9.32 mi
1:02:53
Rank: #4473 (+137)
10K → 15K
6:43/mi
20:52 split
20K· 12.43 mi
1:23:59
Rank: #4422 (+51)
15K → 20K
6:47/mi
21:06 split
Half· 13.11 mi
1:28:34
Rank: #4419 (+3)
20K → Half
6:43/mi
4:35 split
25K· 15.53 mi
1:44:59
Rank: #4304 (+115)
Half → 25K
6:46/mi
16:25 split
30K· 18.64 mi
2:06:26
Rank: #4137 (+167)
25K → 30K
6:54/mi
21:27 split
20M
2:15:55
Rank: #4112 (+25)
30K → 20M
6:59/mi
9:29 split
21M
2:23:20
Rank: #4101 (+11)
20M → 21M
7:25/mi
7:25 split
35K· 21.75 mi
2:28:26
Rank: #4101
21M → 35K
6:49/mi
5:06 split
23M
2:37:19
Rank: #4112 (-11)
35K → 23M
7:06/mi
8:53 split
24M
2:44:18
Rank: #4135 (-23)
23M → 24M
6:59/mi
6:59 split
40K· 24.85 mi
2:50:16
Rank: #4115 (+20)
24M → 40K
6:59/mi
5:58 split
25.2M
2:52:58
Rank: #4159 (-44)
40K → 25.2M
7:50/mi
2:42 split
Finish· 26.22 mi
3:00:03
Rank: #4205 (-46)
25.2M → Finish
6:57/mi
7:05 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:34
Pace6:45 /mi
2nd Half
Distance13.11 mi
Time1:31:29
Pace6:59 /mi
📊Positive Split: 3.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:0320:556:4420:55
6:44
-
10K
6.21 mi10:44:0942:016:4621:06
6:47
+0:03
15K
9.32 mi11:05:011:02:536:4520:52
6:43
-0:04
20K
12.43 mi11:26:071:23:596:4521:06
6:47
+0:04
Half
13.11 mi11:30:421:28:346:454:35
6:43
-0:04
25K
15.53 mi11:47:071:44:596:4516:25
6:46
+0:03
30K
18.64 mi12:08:342:06:266:4721:27
6:54
+0:08
20M
20.00 mi12:18:032:15:556:489:29
6:59
+0:05
21M
21.00 mi12:25:282:23:206:507:25
7:25
+0:26
35K
21.75 mi12:30:342:28:266:505:06
6:49
-0:36
23M
23.00 mi12:39:272:37:196:508:53
7:06
+0:17
24M
24.00 mi12:46:262:44:186:516:59
6:59
-0:07
40K
24.85 mi12:52:242:50:166:515:58
6:59
0:00
25.2M
25.20 mi12:55:062:52:586:522:42
7:50
+0:51
Finish
26.22 mi13:02:113:00:036:527:05
6:57
-0:53

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

6:43 /mi

Average Pace

6:52 /mi

Slowest Pace

7:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:49:56

94% of race

Time at Steady Pace

10:07

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:52 /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 mi10:23:0320:556:4420:55
6:44
#3956
10K
6.21 mi10:44:0942:016:4621:06
6:47
#4610
15K
9.32 mi11:05:011:02:536:4520:52
6:43
#4473
20K
12.43 mi11:26:071:23:596:4521:06
6:47
#4422
Half
13.11 mi11:30:421:28:346:454:35
6:43
#4419
25K
15.53 mi11:47:071:44:596:4516:25
6:46
#4304
30K
18.64 mi12:08:342:06:266:4721:27
6:54
#4137
20M
20.00 mi12:18:032:15:556:489:29
6:59
#4112
21M
21.00 mi12:25:282:23:206:507:25
7:25
#4101
35K
21.75 mi12:30:342:28:266:505:06
6:49
#4101
23M
23.00 mi12:39:272:37:196:508:53
7:06
#4112
24M
24.00 mi12:46:262:44:186:516:59
6:59
#4135
40K
24.85 mi12:52:242:50:166:515:58
6:59
#4115
25.2M
25.20 mi12:55:062:52:586:522:42
7:50
#4159
Finish
26.22 mi13:02:113:00:036:527:05
6:57
#4205
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3956371337134284(Top 16%)4014(Top 26%)4014(Top 76%)
10K6.21 mi3.10 mi4610-6544304-5914304-5915190(Top 19%)4799(Top 32%)4799(Top 91%)
15K9.32 mi3.11 mi4473+1374183+1214183+1214284(Top 16%)4014(Top 26%)4014(Top 76%)
20K12.43 mi3.11 mi4422+514136+474136+474364(Top 16%)4074(Top 27%)4074(Top 77%)
Half13.11 mi0.68 mi4419+3413641364503(Top 17%)4195(Top 28%)4195(Top 79%)
25K15.53 mi2.42 mi4304+1154034+1024034+1023902(Top 15%)3670(Top 24%)3670(Top 69%)
30K18.64 mi3.11 mi4137+1673889+1453889+1453691(Top 14%)3465(Top 23%)3465(Top 66%)
20M20.00 mi1.36 mi4112+253862+273862+273908(Top 15%)3636(Top 24%)3636(Top 69%)
21M21.00 mi1.00 mi4101+113846+163846+164189(Top 16%)3841(Top 25%)3841(Top 73%)
35K21.75 mi0.75 mi41013843+33843+34287(Top 16%)3922(Top 26%)3922(Top 74%)
23M23.00 mi1.25 mi4112-113850-73850-74274(Top 16%)3901(Top 26%)3901(Top 74%)
24M24.00 mi1.00 mi4135-233872-223872-224577(Top 17%)4113(Top 27%)4113(Top 78%)
40K24.85 mi0.85 mi4115+203851+213851+213731(Top 14%)3372(Top 22%)3372(Top 64%)
25.2M25.20 mi0.35 mi4159-443892-413892-415460(Top 21%)4559(Top 30%)4559(Top 86%)
Finish26.22 mi1.02 mi4205-463929-373929-374901(Top 18%)4198(Top 28%)4198(Top 79%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21stories
+97ft-345ft

Overall

4284

Males

4014

M18-39

4014

5K→10K

3.1 - 6.2 mi

Top 19%
×5stories
+79ft-138ft

Overall

5190

Males

4799

M18-39

4799

10K→15K

6.2 - 9.3 mi

Top 16%
×3stories
+67ft-78ft

Overall

4284

Males

4014

M18-39

4014

15K→20K

9.3 - 12.4 mi

Top 16%
×5stories
+106ft-86ft

Overall

4364

Males

4074

M18-39

4074

20K→Half

12.4 - 13.1 mi

Top 17%
×2stories
+19ft-37ft

Overall

4503

Males

4195

M18-39

4195

Half→25K

13.1 - 15.5 mi

Top 15%
×4stories
+66ft-88ft

Overall

3902

Males

3670

M18-39

3670

25K→30K

15.5 - 18.6 mi

Top 14%
×9stories
+181ft-148ft

Overall

3691

Males

3465

M18-39

3465

30K→20M

18.6 - 20.0 mi

Top 15%
×5stories
+64ft-50ft

Overall

3908

Males

3636

M18-39

3636

20M→21M

20.0 - 21.0 mi

Top 16%
×8stories
+106ft-24ft

Overall

4189

Males

3841

M18-39

3841

21M→35K

21.0 - 21.8 mi

Top 16%
×7stories
+17ft-86ft

Overall

4287

Males

3922

M18-39

3922

35K→23M

21.8 - 23.0 mi

Top 16%
×5stories
+23ft-63ft

Overall

4274

Males

3901

M18-39

3901

23M→24M

23.0 - 24.0 mi

Top 17%
×6stories
+12ft-82ft

Overall

4577

Males

4113

M18-39

4113

24M→40K

24.0 - 24.9 mi

Top 14%
×1story
+6ft-20ft

Overall

3731

Males

3372

M18-39

3372

40K→25.2M

24.9 - 25.2 mi

Top 21%
×1story
+13ft-16ft

Overall

5460

Males

4559

M18-39

4559

25.2M→Finish

25.2 - 26.2 mi

Top 18%
×2stories
+22ft-21ft

Overall

4901

Males

4198

M18-39

4198

Passing Analysis

Category:
Athletes Passed
1147
Passed By
1396
Net Change
-249
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3956
5K → 10K42696-654#3956#4610
10K → 15K20770+137#4610#4473
15K → 20K13079+51#4473#4422
20K → Half2118+3#4422#4419
Half → 25K14732+115#4419#4304
25K → 30K20942+167#4304#4137
30K → 20M7045+25#4137#4112
20M → 21M7766+11#4112#4101
21M → 35K34340#4101#4101
35K → 23M6071-11#4101#4112
23M → 24M5275-23#4112#4135
24M → 40K5636+20#4135#4115
40K → 25.2M1155-44#4115#4159
25.2M → Finish3177-46#4159#4205
TOTALS11471396-249
📊

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