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BOSTON MARATHON 2023

Brett Gruber

Bib: 29687•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
8:47/mi
27:17
↑ 97↓ 3451.5%
10K· 6.21 mi
7:53/mi
51:48
↑ 79↓ 1380.4%
15K· 9.32 mi
7:52/mi
1:16:13
↑ 67↓ 78
20K· 12.43 mi
7:58/mi
1:40:59
↑ 106↓ 860.1%
Half· 13.11 mi
7:56/mi
1:46:24
↑ 19↓ 370.5%
25K· 15.53 mi
8:12/mi
2:06:17
↑ 66↓ 880.2%
30K· 18.64 mi
8:35/mi
2:32:57
↑ 181↓ 1480.2%
20M
8:44/mi
2:44:49
↑ 64↓ 500.2%
21M
9:29/mi
2:54:18
↑ 106↓ 241.6%
35K· 21.75 mi
8:52/mi
3:00:56
↑ 17↓ 861.7%
23M
9:14/mi
3:12:30
↑ 23↓ 630.6%
24M
9:11/mi
3:21:41
↓ 821.3%
40K· 24.85 mi
9:20/mi
3:29:40
↓ 200.3%
25.2M
11:24/mi
3:33:36
↑ 13↓ 160.2%
Finish· 26.22 mi
9:21/mi
3:43:08
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:24
Pace8:07 /mi
2nd Half
Distance13.11 mi
Time1:56:44
Pace8:54 /mi
📊Positive Split: 9.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:0027:178:4727:17
8:47
-
10K
6.21 mi12:09:3151:488:2024:31
7:53
-0:54
15K
9.32 mi12:33:561:16:138:1124:25
7:52
-0:01
20K
12.43 mi12:58:421:40:598:0824:46
7:58
+0:06
Half
13.11 mi13:04:071:46:248:075:25
7:56
-0:02
25K
15.53 mi13:24:002:06:178:0819:53
8:12
+0:16
30K
18.64 mi13:50:402:32:578:1226:40
8:35
+0:23
20M
20.00 mi14:02:322:44:498:1411:52
8:44
+0:09
21M
21.00 mi14:12:012:54:188:189:29
9:29
+0:45
35K
21.75 mi14:18:393:00:568:196:38
8:52
-0:37
23M
23.00 mi14:30:133:12:308:2211:34
9:14
+0:22
24M
24.00 mi14:39:243:21:418:249:11
9:11
-0:03
40K
24.85 mi14:47:233:29:408:267:59
9:20
+0:09
25.2M
25.20 mi14:51:193:33:368:293:56
11:24
+2:04
Finish
26.22 mi15:00:513:43:088:319:32
9:21
-2:03

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

7:52 /mi

Average Pace

8:31 /mi

Slowest Pace

11:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:39:00

44% of race

Time at Steady Pace

1:21:38

37% of race

Time at Slower Pace

42:30

19% of race

Average Pace: 8:31 /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 mi11:45:0027:178:4727:17
8:47
#19349
10K
6.21 mi12:09:3151:488:2024:31
7:53
#16751
15K
9.32 mi12:33:561:16:138:1124:25
7:52
#15647
20K
12.43 mi12:58:421:40:598:0824:46
7:58
#15058
Half
13.11 mi13:04:071:46:248:075:25
7:56
#14989
25K
15.53 mi13:24:002:06:178:0819:53
8:12
#14836
30K
18.64 mi13:50:402:32:578:1226:40
8:35
#14857
20M
20.00 mi14:02:322:44:498:1411:52
8:44
#14844
21M
21.00 mi14:12:012:54:188:189:29
9:29
#14889
35K
21.75 mi14:18:393:00:568:196:38
8:52
#14979
23M
23.00 mi14:30:133:12:308:2211:34
9:14
#15092
24M
24.00 mi14:39:243:21:418:249:11
9:11
#15230
40K
24.85 mi14:47:233:29:408:267:59
9:20
#15365
25.2M
25.20 mi14:51:193:33:368:293:56
11:24
#15533
Finish
26.22 mi15:00:513:43:088:319:32
9:21
#15705
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi19349119161191613177(Top 49%)9574(Top 63%)9574(Top 181%)
10K6.21 mi3.10 mi16751+259810986+93010986+93013901(Top 52%)9904(Top 65%)9904(Top 187%)
15K9.32 mi3.11 mi15647+110410562+42410562+42413177(Top 49%)9574(Top 63%)9574(Top 181%)
20K12.43 mi3.11 mi15058+58910320+24210320+24213199(Top 50%)9534(Top 63%)9534(Top 180%)
Half13.11 mi0.68 mi14989+6910293+2710293+2713867(Top 52%)9861(Top 65%)9861(Top 187%)
25K15.53 mi2.42 mi14836+15310210+8310210+8314235(Top 53%)9868(Top 65%)9868(Top 187%)
30K18.64 mi3.11 mi14857-2110188+2210188+2214814(Top 56%)9975(Top 66%)9975(Top 189%)
20M20.00 mi1.36 mi14844+1310159+2910159+2915043(Top 57%)10005(Top 66%)10005(Top 189%)
21M21.00 mi1.00 mi14889-4510148+1110148+1115862(Top 60%)10290(Top 68%)10290(Top 195%)
35K21.75 mi0.75 mi14979-9010159-1110159-1117252(Top 65%)10809(Top 71%)10809(Top 205%)
23M23.00 mi1.25 mi15092-11310174-1510174-1517227(Top 65%)10788(Top 71%)10788(Top 204%)
24M24.00 mi1.00 mi15230-13810216-4210216-4217979(Top 68%)11064(Top 73%)11064(Top 209%)
40K24.85 mi0.85 mi15365-13510244-2810244-2817657(Top 66%)10861(Top 72%)10861(Top 206%)
25.2M25.20 mi0.35 mi15533-16810301-5710301-5721313(Top 80%)12520(Top 82%)12520(Top 237%)
Finish26.22 mi1.02 mi15705-17210369-6810369-6819572(Top 74%)11778(Top 78%)11778(Top 223%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21story building
+97ft-345ft

Overall

13177

Males

9574

M18-39

9574

5K→10K

3.1 - 6.2 mi

Top 52%
×5story building
+79ft-138ft

Overall

13901

Males

9904

M18-39

9904

10K→15K

6.2 - 9.3 mi

Top 49%
×3story building
+67ft-78ft

Overall

13177

Males

9574

M18-39

9574

15K→20K

9.3 - 12.4 mi

Top 50%
×5story building
+106ft-86ft

Overall

13199

Males

9534

M18-39

9534

20K→Half

12.4 - 13.1 mi

Top 52%
×2story building
+19ft-37ft

Overall

13867

Males

9861

M18-39

9861

Half→25K

13.1 - 15.5 mi

Top 53%
×4story building
+66ft-88ft

Overall

14235

Males

9868

M18-39

9868

25K→30K

15.5 - 18.6 mi

Top 56%
×9story building
+181ft-148ft

Overall

14814

Males

9975

M18-39

9975

30K→20M

18.6 - 20.0 mi

Top 57%
×5story building
+64ft-50ft

Overall

15043

Males

10005

M18-39

10005

20M→21M

20.0 - 21.0 mi

Top 60%
×8story building
+106ft-24ft

Overall

15862

Males

10290

M18-39

10290

21M→35K

21.0 - 21.8 mi

Top 65%
×7story building
+17ft-86ft

Overall

17252

Males

10809

M18-39

10809

35K→23M

21.8 - 23.0 mi

Top 65%
×5story building
+23ft-63ft

Overall

17227

Males

10788

M18-39

10788

23M→24M

23.0 - 24.0 mi

Top 68%
×6story building
+12ft-82ft

Overall

17979

Males

11064

M18-39

11064

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

17657

Males

10861

M18-39

10861

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

21313

Males

12520

M18-39

12520

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2story building
+22ft-21ft

Overall

19572

Males

11778

M18-39

11778

Passing Analysis

Category:
Athletes Passed
5097
Passed By
1453
Net Change
+3644
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19349
5K → 10K26035+2598#19349#16751
10K → 15K111410+1104#16751#15647
15K → 20K60920+589#15647#15058
20K → Half745+69#15058#14989
Half → 25K20249+153#14989#14836
25K → 30K167188-21#14836#14857
30K → 20M8471+13#14857#14844
20M → 21M69114-45#14844#14889
21M → 35K31121-90#14889#14979
35K → 23M46159-113#14979#15092
23M → 24M32170-138#15092#15230
24M → 40K30165-135#15230#15365
40K → 25.2M10178-168#15365#15533
25.2M → Finish26198-172#15533#15705
TOTALS50971453+3644
📊

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