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BOSTON MARATHON 2024

Ian Guzy

Bib: 6365•M

UT

0:00
0:00
/ mi
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Overall
#0 / 25550
Gender (Male)
#0 / 14578
Division (M18-39)
#0 / 4849
Race Day Weather
55°/45°F
scattered clouds

⏱️ 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
7:15/mi
22:33
↑ 97↓ 3451.5%
10K· 6.21 mi
7:27/mi
45:42
↑ 79↓ 1380.4%
15K· 9.32 mi
8:40/mi
1:12:38
↑ 67↓ 78
20K· 12.43 mi
8:35/mi
1:39:18
↑ 106↓ 860.1%
Half· 13.11 mi
8:34/mi
1:45:09
↑ 19↓ 370.5%
25K· 15.53 mi
8:57/mi
2:06:50
↑ 66↓ 880.2%
30K· 18.64 mi
9:16/mi
2:35:37
↑ 181↓ 1480.2%
20M
9:51/mi
2:49:00
↑ 64↓ 500.2%
21M
11:05/mi
3:00:05
↑ 106↓ 241.6%
35K· 21.75 mi
9:07/mi
3:06:54
↑ 17↓ 861.7%
23M
10:47/mi
3:20:24
↑ 23↓ 630.6%
24M
9:18/mi
3:29:42
↓ 821.3%
40K· 24.85 mi
10:56/mi
3:39:03
↓ 200.3%
25.2M
10:44/mi
3:42:45
↑ 13↓ 160.2%
Finish· 26.22 mi
8:54/mi
3:51:49
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:09
Pace8:01 /mi
2nd Half
Distance13.11 mi
Time2:06:40
Pace9:40 /mi
📊Positive Split: 20.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:27:5422:337:1522:33
7:15
-
10K
6.21 mi10:51:0345:427:2123:09
7:27
+0:12
15K
9.32 mi11:17:591:12:387:4826:56
8:40
+1:13
20K
12.43 mi11:44:391:39:187:5926:40
8:35
-0:05
Half
13.11 mi11:50:301:45:098:015:51
8:34
-0:01
25K
15.53 mi12:12:112:06:508:1021:41
8:57
+0:23
30K
18.64 mi12:40:582:35:378:2128:47
9:16
+0:19
20M
20.00 mi12:54:212:49:008:2713:23
9:51
+0:35
21M
21.00 mi13:05:263:00:058:3511:05
11:05
+1:14
35K
21.75 mi13:12:153:06:548:366:49
9:07
-1:58
23M
23.00 mi13:25:453:20:248:4313:30
10:47
+1:40
24M
24.00 mi13:35:033:29:428:449:18
9:18
-1:29
40K
24.85 mi13:44:243:39:038:499:21
10:56
+1:38
25.2M
25.20 mi13:48:063:42:458:503:42
10:44
-0:12
Finish
26.22 mi13:57:103:51:498:519:04
8:54
-1:50

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

7:15 /mi

Average Pace

8:51 /mi

Slowest Pace

11:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

45:42

20% of race

Time at Steady Pace

2:15:06

58% of race

Time at Slower Pace

51:01

22% of race

Average Pace: 8:50 /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 mi10:27:5422:337:1522:33
7:15
#8859
10K
6.21 mi10:51:0345:427:2123:09
7:27
#9302
15K
9.32 mi11:17:591:12:387:4826:56
8:40
#12466
20K
12.43 mi11:44:391:39:187:5926:40
8:35
#13358
Half
13.11 mi11:50:301:45:098:015:51
8:34
#13535
25K
15.53 mi12:12:112:06:508:1021:41
8:57
#13820
30K
18.64 mi12:40:582:35:378:2128:47
9:16
#13899
20M
20.00 mi12:54:212:49:008:2713:23
9:51
#14083
21M
21.00 mi13:05:263:00:058:3511:05
11:05
#14292
35K
21.75 mi13:12:153:06:548:366:49
9:07
#14252
23M
23.00 mi13:25:453:20:248:4313:30
10:47
#14618
24M
24.00 mi13:35:033:29:428:449:18
9:18
#14533
40K
24.85 mi13:44:243:39:038:499:21
10:56
#14725
25.2M
25.20 mi13:48:063:42:458:503:42
10:44
#14689
Finish
26.22 mi13:57:103:51:498:519:04
8:54
#14629
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi88597325732517305(Top 68%)10940(Top 75%)10940(Top 226%)
10K6.21 mi3.10 mi9302-4437545-2207545-2209859(Top 39%)7808(Top 54%)7808(Top 161%)
15K9.32 mi3.11 mi12466-31648994-14498994-144917305(Top 68%)10940(Top 75%)10940(Top 226%)
20K12.43 mi3.11 mi13358-8929337-3439337-34315231(Top 60%)10051(Top 69%)10051(Top 207%)
Half13.11 mi0.68 mi13535-1779420-839420-8316093(Top 63%)10370(Top 71%)10370(Top 214%)
25K15.53 mi2.42 mi13820-2859500-809500-8015248(Top 60%)9904(Top 68%)9904(Top 204%)
30K18.64 mi3.11 mi13899-799445+559445+5514461(Top 57%)9309(Top 64%)9309(Top 192%)
20M20.00 mi1.36 mi14083-1849470-259470-2515928(Top 62%)9724(Top 67%)9724(Top 201%)
21M21.00 mi1.00 mi14292-2099502-329502-3216544(Top 65%)9888(Top 68%)9888(Top 204%)
35K21.75 mi0.75 mi14252+409452+509452+5013851(Top 54%)8575(Top 59%)8575(Top 177%)
23M23.00 mi1.25 mi14618-3669538-869538-8617775(Top 70%)10437(Top 72%)10437(Top 215%)
24M24.00 mi1.00 mi14533+859460+789460+7813532(Top 53%)8312(Top 57%)8312(Top 171%)
40K24.85 mi0.85 mi14725-1929516-569516-5617894(Top 70%)10398(Top 71%)10398(Top 214%)
25.2M25.20 mi0.35 mi14689+369487+299487+2913585(Top 53%)8208(Top 56%)8208(Top 169%)
Finish26.22 mi1.02 mi14629+609431+569431+5613698(Top 54%)8344(Top 57%)8344(Top 172%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 68%
×21story building
+97ft-345ft

Overall

17305

Males

10940

M18-39

10940

5K→10K

3.1 - 6.2 mi

Top 39%
×5story building
+79ft-138ft

Overall

9859

Males

7808

M18-39

7808

10K→15K

6.2 - 9.3 mi

Top 68%
×3story building
+67ft-78ft

Overall

17305

Males

10940

M18-39

10940

15K→20K

9.3 - 12.4 mi

Top 60%
×5story building
+106ft-86ft

Overall

15231

Males

10051

M18-39

10051

20K→Half

12.4 - 13.1 mi

Top 63%
×2story building
+19ft-37ft

Overall

16093

Males

10370

M18-39

10370

Half→25K

13.1 - 15.5 mi

Top 60%
×4story building
+66ft-88ft

Overall

15248

Males

9904

M18-39

9904

25K→30K

15.5 - 18.6 mi

Top 57%
×9story building
+181ft-148ft

Overall

14461

Males

9309

M18-39

9309

30K→20M

18.6 - 20.0 mi

Top 62%
×5story building
+64ft-50ft

Overall

15928

Males

9724

M18-39

9724

20M→21M

20.0 - 21.0 mi

Top 65%
×8story building
+106ft-24ft

Overall

16544

Males

9888

M18-39

9888

21M→35K

21.0 - 21.8 mi

Top 54%
×7story building
+17ft-86ft

Overall

13851

Males

8575

M18-39

8575

35K→23M

21.8 - 23.0 mi

Top 70%
×5story building
+23ft-63ft

Overall

17775

Males

10437

M18-39

10437

23M→24M

23.0 - 24.0 mi

Top 53%
×6story building
+12ft-82ft

Overall

13532

Males

8312

M18-39

8312

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

17894

Males

10398

M18-39

10398

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

13585

Males

8208

M18-39

8208

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2story building
+22ft-21ft

Overall

13698

Males

8344

M18-39

8344

Passing Analysis

Category:
Athletes Passed
1265
Passed By
7033
Net Change
-5770
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8859
5K → 10K108551-443#8859#9302
10K → 15K43166-3164#9302#12466
15K → 20K86978-892#12466#13358
20K → Half12189-177#13358#13535
Half → 25K129414-285#13535#13820
25K → 30K266345-79#13820#13899
30K → 20M83267-184#13899#14083
20M → 21M79288-209#14083#14292
21M → 35K9959+40#14292#14252
35K → 23M59425-366#14252#14618
23M → 24M13853+85#14618#14533
24M → 40K40232-192#14533#14725
40K → 25.2M5822+36#14725#14689
25.2M → Finish10444+60#14689#14629
TOTALS12657033-5770
📊

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