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BOSTON MARATHON 2023

Marcel Barth

Bib: 31590•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M45-49)
#0 / 2252
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
8:54/mi
27:40
↑ 97↓ 3451.5%
10K· 6.21 mi
8:44/mi
54:47
↑ 79↓ 1380.4%
15K· 9.32 mi
8:47/mi
1:22:05
↑ 67↓ 78
20K· 12.43 mi
8:42/mi
1:49:07
↑ 106↓ 860.1%
Half· 13.11 mi
8:34/mi
1:54:58
↑ 19↓ 370.5%
25K· 15.53 mi
8:54/mi
2:16:33
↑ 66↓ 880.2%
30K· 18.64 mi
9:14/mi
2:45:13
↑ 181↓ 1480.2%
20M
9:56/mi
2:58:43
↑ 64↓ 500.2%
21M
10:54/mi
3:09:37
↑ 106↓ 241.6%
35K· 21.75 mi
9:39/mi
3:16:50
↑ 17↓ 861.7%
23M
11:08/mi
3:30:46
↑ 23↓ 630.6%
24M
10:20/mi
3:41:06
↓ 821.3%
40K· 24.85 mi
10:54/mi
3:50:25
↓ 200.3%
25.2M
11:16/mi
3:54:18
↑ 13↓ 160.2%
Finish· 26.22 mi
9:28/mi
4:03:57
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:58
Pace8:46 /mi
2nd Half
Distance13.11 mi
Time2:08:59
Pace9:50 /mi
📊Positive Split: 12.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:4727:408:5427:40
8:54
-
10K
6.21 mi12:14:5454:478:4927:07
8:44
-0:10
15K
9.32 mi12:42:121:22:058:4827:18
8:47
+0:03
20K
12.43 mi13:09:141:49:078:4727:02
8:42
-0:05
Half
13.11 mi13:15:051:54:588:465:51
8:34
-0:08
25K
15.53 mi13:36:402:16:338:4721:35
8:54
+0:20
30K
18.64 mi14:05:202:45:138:5228:40
9:14
+0:20
20M
20.00 mi14:18:502:58:438:5613:30
9:56
+0:42
21M
21.00 mi14:29:443:09:379:0210:54
10:54
+0:58
35K
21.75 mi14:36:573:16:509:037:13
9:39
-1:15
23M
23.00 mi14:50:533:30:469:1013:56
11:08
+1:29
24M
24.00 mi15:01:133:41:069:1310:20
10:20
-0:48
40K
24.85 mi15:10:323:50:259:169:19
10:54
+0:34
25.2M
25.20 mi15:14:253:54:189:183:53
11:16
+0:22
Finish
26.22 mi15:24:044:03:579:199:39
9:28
-1:48

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

8:34 /mi

Average Pace

9:19 /mi

Slowest Pace

11:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:16:33

56% of race

Time at Steady Pace

59:02

24% of race

Time at Slower Pace

48:22

20% of race

Average Pace: 9:18 /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 mi11:47:4727:408:5427:40
8:54
#20008
10K
6.21 mi12:14:5454:478:4927:07
8:44
#19765
15K
9.32 mi12:42:121:22:058:4827:18
8:47
#19629
20K
12.43 mi13:09:141:49:078:4727:02
8:42
#19229
Half
13.11 mi13:15:051:54:588:465:51
8:34
#19169
25K
15.53 mi13:36:402:16:338:4721:35
8:54
#19036
30K
18.64 mi14:05:202:45:138:5228:40
9:14
#18902
20M
20.00 mi14:18:502:58:438:5613:30
9:56
#19051
21M
21.00 mi14:29:443:09:379:0210:54
10:54
#19183
35K
21.75 mi14:36:573:16:509:037:13
9:39
#19242
23M
23.00 mi14:50:533:30:469:1013:56
11:08
#19575
24M
24.00 mi15:01:133:41:069:1310:20
10:20
#19715
40K
24.85 mi15:10:323:50:259:169:19
10:54
#19848
25.2M
25.20 mi15:14:253:54:189:183:53
11:16
#19894
Finish
26.22 mi15:24:044:03:579:199:39
9:28
#19898
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi20008121661216619432(Top 73%)12062(Top 79%)12062(Top 536%)
10K6.21 mi3.10 mi19765+24312113+5312113+5319562(Top 73%)12116(Top 80%)12116(Top 538%)
15K9.32 mi3.11 mi19629+13612081+3212081+3219432(Top 73%)12062(Top 79%)12062(Top 536%)
20K12.43 mi3.11 mi19229+40011954+12711954+12718129(Top 68%)11529(Top 76%)11529(Top 512%)
Half13.11 mi0.68 mi19169+6011931+2311931+2318168(Top 68%)11574(Top 76%)11574(Top 514%)
25K15.53 mi2.42 mi19036+13311878+5311878+5318463(Top 69%)11622(Top 77%)11622(Top 516%)
30K18.64 mi3.11 mi18902+13411801+7711801+7718281(Top 69%)11456(Top 75%)11456(Top 509%)
20M20.00 mi1.36 mi19051-14911848-4711848-4720272(Top 76%)12239(Top 81%)12239(Top 543%)
21M21.00 mi1.00 mi19183-13211889-4111889-4120590(Top 77%)12332(Top 81%)12332(Top 548%)
35K21.75 mi0.75 mi19242-5911909-2011909-2020279(Top 76%)12153(Top 80%)12153(Top 540%)
23M23.00 mi1.25 mi19575-33312044-13512044-13522582(Top 85%)13191(Top 87%)13191(Top 586%)
24M24.00 mi1.00 mi19715-14012095-5112095-5121625(Top 81%)12696(Top 84%)12696(Top 564%)
40K24.85 mi0.85 mi19848-13312135-4012135-4022129(Top 83%)12896(Top 85%)12896(Top 573%)
25.2M25.20 mi0.35 mi19894-4612153-1812153-1821020(Top 79%)12393(Top 82%)12393(Top 550%)
Finish26.22 mi1.02 mi19898-412143+1012143+1020007(Top 75%)11985(Top 79%)11985(Top 532%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21story building
+97ft-345ft

Overall

19432

Males

12062

M45-49

12062

5K→10K

3.1 - 6.2 mi

Top 73%
×5story building
+79ft-138ft

Overall

19562

Males

12116

M45-49

12116

10K→15K

6.2 - 9.3 mi

Top 73%
×3story building
+67ft-78ft

Overall

19432

Males

12062

M45-49

12062

15K→20K

9.3 - 12.4 mi

Top 68%
×5story building
+106ft-86ft

Overall

18129

Males

11529

M45-49

11529

20K→Half

12.4 - 13.1 mi

Top 68%
×2story building
+19ft-37ft

Overall

18168

Males

11574

M45-49

11574

Half→25K

13.1 - 15.5 mi

Top 69%
×4story building
+66ft-88ft

Overall

18463

Males

11622

M45-49

11622

25K→30K

15.5 - 18.6 mi

Top 69%
×9story building
+181ft-148ft

Overall

18281

Males

11456

M45-49

11456

30K→20M

18.6 - 20.0 mi

Top 76%
×5story building
+64ft-50ft

Overall

20272

Males

12239

M45-49

12239

20M→21M

20.0 - 21.0 mi

Top 77%
×8story building
+106ft-24ft

Overall

20590

Males

12332

M45-49

12332

21M→35K

21.0 - 21.8 mi

Top 76%
×7story building
+17ft-86ft

Overall

20279

Males

12153

M45-49

12153

35K→23M

21.8 - 23.0 mi

Top 85%
×5story building
+23ft-63ft

Overall

22582

Males

13191

M45-49

13191

23M→24M

23.0 - 24.0 mi

Top 81%
×6story building
+12ft-82ft

Overall

21625

Males

12696

M45-49

12696

24M→40K

24.0 - 24.9 mi

Top 83%
×1story
+6ft-20ft

Overall

22129

Males

12896

M45-49

12896

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

21020

Males

12393

M45-49

12393

25.2M→Finish

25.2 - 26.2 mi

Top 75%
×2story building
+22ft-21ft

Overall

20007

Males

11985

M45-49

11985

Passing Analysis

Category:
Athletes Passed
1825
Passed By
1715
Net Change
+110
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20008
5K → 10K449206+243#20008#19765
10K → 15K257121+136#19765#19629
15K → 20K42222+400#19629#19229
20K → Half644+60#19229#19169
Half → 25K18148+133#19169#19036
25K → 30K237103+134#19036#18902
30K → 20M41190-149#18902#19051
20M → 21M36168-132#19051#19183
21M → 35K2483-59#19183#19242
35K → 23M18351-333#19242#19575
23M → 24M21161-140#19575#19715
24M → 40K20153-133#19715#19848
40K → 25.2M1460-46#19848#19894
25.2M → Finish4145-4#19894#19898
TOTALS18251715+110
📊

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