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BOSTON MARATHON 2023

Juan Gonzalez

Bib: 29021•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M40-44)
#0 / 2241
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
9:25/mi
29:16
↑ 97↓ 3451.5%
10K· 6.21 mi
8:38/mi
56:04
↑ 79↓ 1380.4%
15K· 9.32 mi
8:47/mi
1:23:22
↑ 67↓ 78
20K· 12.43 mi
8:43/mi
1:50:27
↑ 106↓ 860.1%
Half· 13.11 mi
8:33/mi
1:56:17
↑ 19↓ 370.5%
25K· 15.53 mi
9:04/mi
2:18:15
↑ 66↓ 880.2%
30K· 18.64 mi
9:52/mi
2:48:54
↑ 181↓ 1480.2%
20M
10:38/mi
3:03:21
↑ 64↓ 500.2%
21M
11:21/mi
3:14:42
↑ 106↓ 241.6%
35K· 21.75 mi
9:36/mi
3:21:53
↑ 17↓ 861.7%
23M
10:01/mi
3:34:26
↑ 23↓ 630.6%
24M
9:36/mi
3:44:02
↓ 821.3%
40K· 24.85 mi
10:18/mi
3:52:50
↓ 200.3%
25.2M
11:24/mi
3:56:46
↑ 13↓ 160.2%
Finish· 26.22 mi
10:09/mi
4:07:07
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:17
Pace8:52 /mi
2nd Half
Distance13.11 mi
Time2:10:50
Pace9:59 /mi
📊Positive Split: 12.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:4129:169:2529:16
9:25
-
10K
6.21 mi12:14:2956:049:0126:48
8:38
-0:47
15K
9.32 mi12:41:471:23:228:5727:18
8:47
+0:09
20K
12.43 mi13:08:521:50:278:5327:05
8:43
-0:04
Half
13.11 mi13:14:421:56:178:525:50
8:33
-0:10
25K
15.53 mi13:36:402:18:158:5421:58
9:04
+0:31
30K
18.64 mi14:07:192:48:549:0430:39
9:52
+0:48
20M
20.00 mi14:21:463:03:219:1014:27
10:38
+0:46
21M
21.00 mi14:33:073:14:429:1611:21
11:21
+0:43
35K
21.75 mi14:40:183:21:539:177:11
9:36
-1:45
23M
23.00 mi14:52:513:34:269:1912:33
10:01
+0:25
24M
24.00 mi15:02:273:44:029:209:36
9:36
-0:25
40K
24.85 mi15:11:153:52:509:228:48
10:18
+0:42
25.2M
25.20 mi15:15:113:56:469:243:56
11:24
+1:06
Finish
26.22 mi15:25:324:07:079:2610:21
10:09
-1:15

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

8:33 /mi

Average Pace

9:26 /mi

Slowest Pace

11:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:48:59

44% of race

Time at Steady Pace

1:29:15

36% of race

Time at Slower Pace

48:53

20% of race

Average Pace: 9:25 /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 mi11:47:4129:169:2529:16
9:25
#21845
10K
6.21 mi12:14:2956:049:0126:48
8:38
#20728
15K
9.32 mi12:41:471:23:228:5727:18
8:47
#20313
20K
12.43 mi13:08:521:50:278:5327:05
8:43
#19799
Half
13.11 mi13:14:421:56:178:525:50
8:33
#19714
25K
15.53 mi13:36:402:18:158:5421:58
9:04
#19617
30K
18.64 mi14:07:192:48:549:0430:39
9:52
#19881
20M
20.00 mi14:21:463:03:219:1014:27
10:38
#20117
21M
21.00 mi14:33:073:14:429:1611:21
11:21
#20230
35K
21.75 mi14:40:183:21:539:177:11
9:36
#20229
23M
23.00 mi14:52:513:34:269:1912:33
10:01
#20210
24M
24.00 mi15:02:273:44:029:209:36
9:36
#20184
40K
24.85 mi15:11:153:52:509:228:48
10:18
#20207
25.2M
25.20 mi15:15:113:56:469:243:56
11:24
#20225
Finish
26.22 mi15:25:324:07:079:2610:21
10:09
#20281
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi21845130151301519434(Top 73%)12064(Top 79%)12064(Top 538%)
10K6.21 mi3.10 mi20728+111712549+46612549+46618979(Top 71%)11889(Top 78%)11889(Top 531%)
15K9.32 mi3.11 mi20313+41512380+16912380+16919434(Top 73%)12064(Top 79%)12064(Top 538%)
20K12.43 mi3.11 mi19799+51412175+20512175+20518224(Top 68%)11578(Top 76%)11578(Top 517%)
Half13.11 mi0.68 mi19714+8512151+2412151+2417987(Top 68%)11509(Top 76%)11509(Top 514%)
25K15.53 mi2.42 mi19617+9712102+4912102+4919239(Top 72%)11948(Top 79%)11948(Top 533%)
30K18.64 mi3.11 mi19881-26412195-9312195-9320657(Top 78%)12493(Top 82%)12493(Top 557%)
20M20.00 mi1.36 mi20117-23612286-9112286-9122001(Top 83%)12999(Top 86%)12999(Top 580%)
21M21.00 mi1.00 mi20230-11312328-4212328-4221582(Top 81%)12784(Top 84%)12784(Top 570%)
35K21.75 mi0.75 mi20229+112318+1012318+1020156(Top 76%)12110(Top 80%)12110(Top 540%)
23M23.00 mi1.25 mi20210+1912303+1512303+1520050(Top 75%)12043(Top 79%)12043(Top 537%)
24M24.00 mi1.00 mi20184+2612279+2412279+2419556(Top 73%)11794(Top 78%)11794(Top 526%)
40K24.85 mi0.85 mi20207-2312278+112278+120703(Top 78%)12238(Top 81%)12238(Top 546%)
25.2M25.20 mi0.35 mi20225-1812284-612284-621330(Top 80%)12537(Top 83%)12537(Top 559%)
Finish26.22 mi1.02 mi20281-5612298-1412298-1422164(Top 83%)12933(Top 85%)12933(Top 577%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21story building
+97ft-345ft

Overall

19434

Males

12064

M40-44

12064

5K→10K

3.1 - 6.2 mi

Top 71%
×5story building
+79ft-138ft

Overall

18979

Males

11889

M40-44

11889

10K→15K

6.2 - 9.3 mi

Top 73%
×3story building
+67ft-78ft

Overall

19434

Males

12064

M40-44

12064

15K→20K

9.3 - 12.4 mi

Top 68%
×5story building
+106ft-86ft

Overall

18224

Males

11578

M40-44

11578

20K→Half

12.4 - 13.1 mi

Top 68%
×2story building
+19ft-37ft

Overall

17987

Males

11509

M40-44

11509

Half→25K

13.1 - 15.5 mi

Top 72%
×4story building
+66ft-88ft

Overall

19239

Males

11948

M40-44

11948

25K→30K

15.5 - 18.6 mi

Top 78%
×9story building
+181ft-148ft

Overall

20657

Males

12493

M40-44

12493

30K→20M

18.6 - 20.0 mi

Top 83%
×5story building
+64ft-50ft

Overall

22001

Males

12999

M40-44

12999

20M→21M

20.0 - 21.0 mi

Top 81%
×8story building
+106ft-24ft

Overall

21582

Males

12784

M40-44

12784

21M→35K

21.0 - 21.8 mi

Top 76%
×7story building
+17ft-86ft

Overall

20156

Males

12110

M40-44

12110

35K→23M

21.8 - 23.0 mi

Top 75%
×5story building
+23ft-63ft

Overall

20050

Males

12043

M40-44

12043

23M→24M

23.0 - 24.0 mi

Top 73%
×6story building
+12ft-82ft

Overall

19556

Males

11794

M40-44

11794

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

20703

Males

12238

M40-44

12238

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

21330

Males

12537

M40-44

12537

25.2M→Finish

25.2 - 26.2 mi

Top 83%
×2story building
+22ft-21ft

Overall

22164

Males

12933

M40-44

12933

Passing Analysis

Category:
Athletes Passed
2790
Passed By
1226
Net Change
+1564
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21845
5K → 10K114023+1117#21845#20728
10K → 15K45136+415#20728#20313
15K → 20K53319+514#20313#19799
20K → Half949+85#19799#19714
Half → 25K16063+97#19714#19617
25K → 30K90354-264#19617#19881
30K → 20M32268-236#19881#20117
20M → 21M42155-113#20117#20230
21M → 35K3837+1#20230#20229
35K → 23M7960+19#20229#20210
23M → 24M6539+26#20210#20184
24M → 40K3255-23#20184#20207
40K → 25.2M1129-18#20207#20225
25.2M → Finish2379-56#20225#20281
TOTALS27901226+1564
📊

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