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BOSTON MARATHON 2023

Brian Freiwald

Bib: 29730•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 47%
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
8:08/mi
25:16
↑ 97↓ 3451.5%
10K· 6.21 mi
7:56/mi
49:55
↑ 79↓ 1380.4%
15K· 9.32 mi
8:08/mi
1:15:11
↑ 67↓ 78
20K· 12.43 mi
8:15/mi
1:40:49
↑ 106↓ 860.1%
Half· 13.11 mi
8:10/mi
1:46:23
↑ 19↓ 370.5%
25K· 15.53 mi
8:26/mi
2:06:50
↑ 66↓ 880.2%
30K· 18.64 mi
8:24/mi
2:32:57
↑ 181↓ 1480.2%
20M
8:05/mi
2:43:56
↑ 64↓ 500.2%
21M
8:21/mi
2:52:17
↑ 106↓ 241.6%
35K· 21.75 mi
7:25/mi
2:57:50
↑ 17↓ 861.7%
23M
7:41/mi
3:07:27
↑ 23↓ 630.6%
24M
7:22/mi
3:14:49
↓ 821.3%
40K· 24.85 mi
7:27/mi
3:21:11
↓ 200.3%
25.2M
7:56/mi
3:23:55
↑ 13↓ 160.2%
Finish· 26.22 mi
7:04/mi
3:31:07
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:46:23
Pace8:07 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:44:44
Pace7:59 /mi
📊Negative Split: 1.6% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:43:0825:168:0825:16
8:08
-
10K
6.21 mi12:07:4749:558:0224:39
7:56
-0:12
15K
9.32 mi12:33:031:15:118:0425:16
8:08
+0:12
20K
12.43 mi12:58:411:40:498:0725:38
8:15
+0:07
Half
13.11 mi13:04:151:46:238:075:34
8:10
-0:05
25K
15.53 mi13:24:422:06:508:1020:27
8:26
+0:16
30K
18.64 mi13:50:492:32:578:1226:07
8:24
-0:02
20M
20.00 mi14:01:482:43:568:1210:59
8:05
-0:19
21M
21.00 mi14:10:092:52:178:128:21
8:21
+0:16
35K
21.75 mi14:15:422:57:508:115:33
7:25
-0:56
23M
23.00 mi14:25:193:07:278:099:37
7:41
+0:16
24M
24.00 mi14:32:413:14:498:077:22
7:22
-0:19
40K
24.85 mi14:39:033:21:118:066:22
7:27
+0:05
25.2M
25.20 mi14:41:473:23:558:062:44
7:56
+0:29
Finish
26.22 mi14:48:593:31:078:037:12
7:04
-0:52

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

7:04 /mi

Average Pace

8:03 /mi

Slowest Pace

8:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

36:06

17% of race

Time at Steady Pace

2:00:06

57% of race

Time at Slower Pace

54:55

26% 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 mi11:43:0825:168:0825:16
8:08
#14940
10K
6.21 mi12:07:4749:558:0224:39
7:56
#14612
15K
9.32 mi12:33:031:15:118:0425:16
8:08
#14864
20K
12.43 mi12:58:411:40:498:0725:38
8:15
#14959
Half
13.11 mi13:04:151:46:238:075:34
8:10
#14976
25K
15.53 mi13:24:422:06:508:1020:27
8:26
#15093
30K
18.64 mi13:50:492:32:578:1226:07
8:24
#14853
20M
20.00 mi14:01:482:43:568:1210:59
8:05
#14526
21M
21.00 mi14:10:092:52:178:128:21
8:21
#14245
35K
21.75 mi14:15:422:57:508:115:33
7:25
#13991
23M
23.00 mi14:25:193:07:278:099:37
7:41
#13585
24M
24.00 mi14:32:413:14:498:077:22
7:22
#13252
40K
24.85 mi14:39:033:21:118:066:22
7:27
#12981
25.2M
25.20 mi14:41:473:23:558:062:44
7:56
#12864
Finish
26.22 mi14:48:593:31:078:037:12
7:04
#12567
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi14940103141031415362(Top 58%)10453(Top 69%)10453(Top 198%)
10K6.21 mi3.10 mi14612+32810180+13410180+13414257(Top 54%)10024(Top 66%)10024(Top 190%)
15K9.32 mi3.11 mi14864-25210268-8810268-8815362(Top 58%)10453(Top 69%)10453(Top 198%)
20K12.43 mi3.11 mi14959-9510281-1310281-1315259(Top 57%)10366(Top 68%)10366(Top 196%)
Half13.11 mi0.68 mi14976-1710285-410285-415434(Top 58%)10451(Top 69%)10451(Top 198%)
25K15.53 mi2.42 mi15093-11710305-2010305-2015778(Top 59%)10452(Top 69%)10452(Top 198%)
30K18.64 mi3.11 mi14853+24010184+12110184+12113720(Top 52%)9537(Top 63%)9537(Top 180%)
20M20.00 mi1.36 mi14526+32710021+16310021+16310881(Top 41%)8197(Top 54%)8197(Top 155%)
21M21.00 mi1.00 mi14245+2819885+1369885+1369532(Top 36%)7370(Top 49%)7370(Top 139%)
35K21.75 mi0.75 mi13991+2549780+1059780+1057949(Top 30%)6484(Top 43%)6484(Top 123%)
23M23.00 mi1.25 mi13585+4069602+1789602+1787631(Top 29%)6207(Top 41%)6207(Top 117%)
24M24.00 mi1.00 mi13252+3339441+1619441+1616849(Top 26%)5638(Top 37%)5638(Top 107%)
40K24.85 mi0.85 mi12981+2719299+1429299+1426378(Top 24%)5277(Top 35%)5277(Top 100%)
25.2M25.20 mi0.35 mi12864+1179246+539246+536111(Top 23%)5042(Top 33%)5042(Top 95%)
Finish26.22 mi1.02 mi12567+2979104+1429104+1425628(Top 21%)4682(Top 31%)4682(Top 89%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21story building
+97ft-345ft

Overall

15362

Males

10453

M18-39

10453

5K→10K

3.1 - 6.2 mi

Top 54%
×5story building
+79ft-138ft

Overall

14257

Males

10024

M18-39

10024

10K→15K

6.2 - 9.3 mi

Top 58%
×3story building
+67ft-78ft

Overall

15362

Males

10453

M18-39

10453

15K→20K

9.3 - 12.4 mi

Top 57%
×5story building
+106ft-86ft

Overall

15259

Males

10366

M18-39

10366

20K→Half

12.4 - 13.1 mi

Top 58%
×2story building
+19ft-37ft

Overall

15434

Males

10451

M18-39

10451

Half→25K

13.1 - 15.5 mi

Top 59%
×4story building
+66ft-88ft

Overall

15778

Males

10452

M18-39

10452

25K→30K

15.5 - 18.6 mi

Top 52%
×9story building
+181ft-148ft

Overall

13720

Males

9537

M18-39

9537

30K→20M

18.6 - 20.0 mi

Top 41%
×5story building
+64ft-50ft

Overall

10881

Males

8197

M18-39

8197

20M→21M

20.0 - 21.0 mi

Top 36%
×8story building
+106ft-24ft

Overall

9532

Males

7370

M18-39

7370

21M→35K

21.0 - 21.8 mi

Top 30%
×7story building
+17ft-86ft

Overall

7949

Males

6484

M18-39

6484

35K→23M

21.8 - 23.0 mi

Top 29%
×5story building
+23ft-63ft

Overall

7631

Males

6207

M18-39

6207

23M→24M

23.0 - 24.0 mi

Top 26%
×6story building
+12ft-82ft

Overall

6849

Males

5638

M18-39

5638

24M→40K

24.0 - 24.9 mi

Top 24%
×1story
+6ft-20ft

Overall

6378

Males

5277

M18-39

5277

40K→25.2M

24.9 - 25.2 mi

Top 23%
×1story
+13ft-16ft

Overall

6111

Males

5042

M18-39

5042

25.2M→Finish

25.2 - 26.2 mi

Top 21%
×2story building
+22ft-21ft

Overall

5628

Males

4682

M18-39

4682

Passing Analysis

Category:
Athletes Passed
3470
Passed By
1097
Net Change
+2373
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14940
5K → 10K485157+328#14940#14612
10K → 15K105357-252#14612#14864
15K → 20K154249-95#14864#14959
20K → Half3047-17#14959#14976
Half → 25K95212-117#14976#15093
25K → 30K31070+240#15093#14853
30K → 20M3292+327#14853#14526
20M → 21M2821+281#14526#14245
21M → 35K2540+254#14245#13991
35K → 23M4060+406#13991#13585
23M → 24M3341+333#13585#13252
24M → 40K2710+271#13252#12981
40K → 25.2M1170+117#12981#12864
25.2M → Finish2981+297#12864#12567
TOTALS34701097+2373
📊

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