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BOSTON MARATHON 2023

Dan Fiedler

Bib: 9473•M

VT

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 47%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M50-54)
#0 / 2052
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
7:55/mi
24:37
↑ 97↓ 3451.5%
10K· 6.21 mi
8:06/mi
49:47
↑ 79↓ 1380.4%
15K· 9.32 mi
8:03/mi
1:14:49
↑ 67↓ 78
20K· 12.43 mi
8:11/mi
1:40:14
↑ 106↓ 860.1%
Half· 13.11 mi
7:49/mi
1:45:34
↑ 19↓ 370.5%
25K· 15.53 mi
8:01/mi
2:05:01
↑ 66↓ 880.2%
30K· 18.64 mi
8:10/mi
2:30:22
↑ 181↓ 1480.2%
20M
8:18/mi
2:41:39
↑ 64↓ 500.2%
21M
8:21/mi
2:50:00
↑ 106↓ 241.6%
35K· 21.75 mi
7:25/mi
2:55:33
↑ 17↓ 861.7%
23M
7:58/mi
3:05:31
↑ 23↓ 630.6%
24M
7:55/mi
3:13:26
↓ 821.3%
40K· 24.85 mi
8:07/mi
3:20:22
↓ 200.3%
25.2M
8:39/mi
3:23:21
↑ 13↓ 160.2%
Finish· 26.22 mi
7:41/mi
3:31:11
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:45:34
Pace8:03 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:45:37
Pace8:03 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:0624:377:5524:37
7:55
-
10K
6.21 mi11:16:1649:478:0125:10
8:06
+0:11
15K
9.32 mi11:41:181:14:498:0225:02
8:03
-0:03
20K
12.43 mi12:06:431:40:148:0425:25
8:11
+0:08
Half
13.11 mi12:12:031:45:348:035:20
7:49
-0:22
25K
15.53 mi12:31:302:05:018:0319:27
8:01
+0:12
30K
18.64 mi12:56:512:30:228:0425:21
8:10
+0:09
20M
20.00 mi13:08:082:41:398:0511:17
8:18
+0:08
21M
21.00 mi13:16:292:50:008:068:21
8:21
+0:03
35K
21.75 mi13:22:022:55:338:045:33
7:25
-0:56
23M
23.00 mi13:32:003:05:318:049:58
7:58
+0:33
24M
24.00 mi13:39:553:13:268:047:55
7:55
-0:03
40K
24.85 mi13:46:513:20:228:046:56
8:07
+0:12
25.2M
25.20 mi13:49:503:23:218:042:59
8:39
+0:32
Finish
26.22 mi13:57:403:31:118:047:50
7:41
-0:58

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

7:25 /mi

Average Pace

8:04 /mi

Slowest Pace

8:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:17:48

65% of race

Time at Steady Pace

1:13:23

35% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:03 /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 mi10:51:0624:377:5524:37
7:55
#13432
10K
6.21 mi11:16:1649:478:0125:10
8:06
#14463
15K
9.32 mi11:41:181:14:498:0225:02
8:03
#14536
20K
12.43 mi12:06:431:40:148:0425:25
8:11
#14602
Half
13.11 mi12:12:031:45:348:035:20
7:49
#14513
25K
15.53 mi12:31:302:05:018:0319:27
8:01
#14255
30K
18.64 mi12:56:512:30:228:0425:21
8:10
#13822
20M
20.00 mi13:08:082:41:398:0511:17
8:18
#13685
21M
21.00 mi13:16:292:50:008:068:21
8:21
#13411
35K
21.75 mi13:22:022:55:338:045:33
7:25
#13188
23M
23.00 mi13:32:003:05:318:049:58
7:58
#12945
24M
24.00 mi13:39:553:13:268:047:55
7:55
#12839
40K
24.85 mi13:46:513:20:228:046:56
8:07
#12745
25.2M
25.20 mi13:49:503:23:218:042:59
8:39
#12703
Finish
26.22 mi13:57:403:31:118:047:50
7:41
#12599
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi134329730973014849(Top 56%)10231(Top 67%)10231(Top 499%)
10K6.21 mi3.10 mi14463-103110126-39610126-39615503(Top 58%)10519(Top 69%)10519(Top 513%)
15K9.32 mi3.11 mi14536-7310145-1910145-1914849(Top 56%)10231(Top 67%)10231(Top 499%)
20K12.43 mi3.11 mi14602-6610148-310148-314819(Top 56%)10200(Top 67%)10200(Top 497%)
Half13.11 mi0.68 mi14513+8910118+3010118+3012818(Top 48%)9411(Top 62%)9411(Top 459%)
25K15.53 mi2.42 mi14255+2589978+1409978+14012909(Top 48%)9315(Top 61%)9315(Top 454%)
30K18.64 mi3.11 mi13822+4339775+2039775+20312059(Top 45%)8829(Top 58%)8829(Top 430%)
20M20.00 mi1.36 mi13685+1379698+779698+7712370(Top 46%)8853(Top 58%)8853(Top 431%)
21M21.00 mi1.00 mi13411+2749570+1289570+1289533(Top 36%)7371(Top 49%)7371(Top 359%)
35K21.75 mi0.75 mi13188+2239468+1029468+1027950(Top 30%)6485(Top 43%)6485(Top 316%)
23M23.00 mi1.25 mi12945+2439333+1359333+1359478(Top 36%)7224(Top 48%)7224(Top 352%)
24M24.00 mi1.00 mi12839+1069269+649269+6410643(Top 40%)7739(Top 51%)7739(Top 377%)
40K24.85 mi0.85 mi12745+949207+629207+6210754(Top 40%)7730(Top 51%)7730(Top 377%)
25.2M25.20 mi0.35 mi12703+429184+239184+2310436(Top 39%)7534(Top 50%)7534(Top 367%)
Finish26.22 mi1.02 mi12599+1049117+679117+679882(Top 37%)7227(Top 48%)7227(Top 352%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 56%
×21story building
+97ft-345ft

Overall

14849

Males

10231

M50-54

10231

5K→10K

3.1 - 6.2 mi

Top 58%
×5story building
+79ft-138ft

Overall

15503

Males

10519

M50-54

10519

10K→15K

6.2 - 9.3 mi

Top 56%
×3story building
+67ft-78ft

Overall

14849

Males

10231

M50-54

10231

15K→20K

9.3 - 12.4 mi

Top 56%
×5story building
+106ft-86ft

Overall

14819

Males

10200

M50-54

10200

20K→Half

12.4 - 13.1 mi

Top 48%
×2story building
+19ft-37ft

Overall

12818

Males

9411

M50-54

9411

Half→25K

13.1 - 15.5 mi

Top 48%
×4story building
+66ft-88ft

Overall

12909

Males

9315

M50-54

9315

25K→30K

15.5 - 18.6 mi

Top 45%
×9story building
+181ft-148ft

Overall

12059

Males

8829

M50-54

8829

30K→20M

18.6 - 20.0 mi

Top 46%
×5story building
+64ft-50ft

Overall

12370

Males

8853

M50-54

8853

20M→21M

20.0 - 21.0 mi

Top 36%
×8story building
+106ft-24ft

Overall

9533

Males

7371

M50-54

7371

21M→35K

21.0 - 21.8 mi

Top 30%
×7story building
+17ft-86ft

Overall

7950

Males

6485

M50-54

6485

35K→23M

21.8 - 23.0 mi

Top 36%
×5story building
+23ft-63ft

Overall

9478

Males

7224

M50-54

7224

23M→24M

23.0 - 24.0 mi

Top 40%
×6story building
+12ft-82ft

Overall

10643

Males

7739

M50-54

7739

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

10754

Males

7730

M50-54

7730

40K→25.2M

24.9 - 25.2 mi

Top 39%
×1story
+13ft-16ft

Overall

10436

Males

7534

M50-54

7534

25.2M→Finish

25.2 - 26.2 mi

Top 37%
×2story building
+22ft-21ft

Overall

9882

Males

7227

M50-54

7227

Passing Analysis

Category:
Athletes Passed
2551
Passed By
1718
Net Change
+833
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13432
5K → 10K461077-1031#13432#14463
10K → 15K166239-73#14463#14536
15K → 20K161227-66#14536#14602
20K → Half967+89#14602#14513
Half → 25K28628+258#14513#14255
25K → 30K46027+433#14255#13822
30K → 20M16831+137#13822#13685
20M → 21M2806+274#13685#13411
21M → 35K2252+223#13411#13188
35K → 23M2463+243#13188#12945
23M → 24M13226+106#12945#12839
24M → 40K10814+94#12839#12745
40K → 25.2M5210+42#12745#12703
25.2M → Finish12521+104#12703#12599
TOTALS25511718+833
📊

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