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BOSTON MARATHON 2023

Jacob Gurzler

Bib: 1021•M

CT

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 7%
Gender (Male)
#0 / 15176
Top 11%
Division (M18-39)
#0 / 5285
Top 26%
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
6:21/mi
19:45
↑ 97↓ 3451.5%
10K· 6.21 mi
6:22/mi
39:32
↑ 79↓ 1380.4%
15K· 9.32 mi
6:29/mi
59:40
↑ 67↓ 78
20K· 12.43 mi
6:35/mi
1:20:07
↑ 106↓ 860.1%
Half· 13.11 mi
6:24/mi
1:24:29
↑ 19↓ 370.5%
25K· 15.53 mi
6:36/mi
1:40:28
↑ 66↓ 880.2%
30K· 18.64 mi
6:42/mi
2:01:17
↑ 181↓ 1480.2%
20M
6:43/mi
2:10:24
↑ 64↓ 500.2%
21M
6:46/mi
2:17:10
↑ 106↓ 241.6%
35K· 21.75 mi
6:16/mi
2:21:51
↑ 17↓ 861.7%
23M
6:25/mi
2:29:53
↑ 23↓ 630.6%
24M
6:13/mi
2:36:06
↓ 821.3%
40K· 24.85 mi
6:08/mi
2:41:21
↓ 200.3%
25.2M
6:26/mi
2:43:34
↑ 13↓ 160.2%
Finish· 26.22 mi
6:08/mi
2:49:49
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:24:29
Pace6:27 /mi
2nd Half
Distance13.11 mi
Time1:25:20
Pace6:31 /mi
📊Positive Split: 1.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:1119:456:2119:45
6:21
-
10K
6.21 mi10:39:5839:326:2219:47
6:22
+0:01
15K
9.32 mi11:00:0659:406:2420:08
6:29
+0:07
20K
12.43 mi11:20:331:20:076:2720:27
6:35
+0:06
Half
13.11 mi11:24:551:24:296:274:22
6:24
-0:11
25K
15.53 mi11:40:541:40:286:2815:59
6:36
+0:12
30K
18.64 mi12:01:432:01:176:3020:49
6:42
+0:06
20M
20.00 mi12:10:502:10:246:319:07
6:43
+0:01
21M
21.00 mi12:17:362:17:106:326:46
6:46
+0:03
35K
21.75 mi12:22:172:21:516:314:41
6:16
-0:30
23M
23.00 mi12:30:192:29:536:318:02
6:25
+0:09
24M
24.00 mi12:36:322:36:066:306:13
6:13
-0:12
40K
24.85 mi12:41:472:41:216:305:15
6:08
-0:05
25.2M
25.20 mi12:44:002:43:346:292:13
6:26
+0:18
Finish
26.22 mi12:50:152:49:496:296:15
6:08
-0:18

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

6:08 /mi

Average Pace

6:29 /mi

Slowest Pace

6:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:43:03

96% of race

Time at Steady Pace

6:46

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:29 /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 mi10:20:1119:456:2119:45
6:21
#1634
10K
6.21 mi10:39:5839:326:2219:47
6:22
#1818
15K
9.32 mi11:00:0659:406:2420:08
6:29
#2006
20K
12.43 mi11:20:331:20:076:2720:27
6:35
#2181
Half
13.11 mi11:24:551:24:296:274:22
6:24
#2181
25K
15.53 mi11:40:541:40:286:2815:59
6:36
#2237
30K
18.64 mi12:01:432:01:176:3020:49
6:42
#2265
20M
20.00 mi12:10:502:10:246:319:07
6:43
#2241
21M
21.00 mi12:17:362:17:106:326:46
6:46
#2162
35K
21.75 mi12:22:172:21:516:314:41
6:16
#2125
23M
23.00 mi12:30:192:29:536:318:02
6:25
#2014
24M
24.00 mi12:36:322:36:066:306:13
6:13
#1943
40K
24.85 mi12:41:472:41:216:305:15
6:08
#1860
25.2M
25.20 mi12:44:002:43:346:292:13
6:26
#1814
Finish
26.22 mi12:50:152:49:496:296:15
6:08
#1747
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1634155715572512(Top 9%)2408(Top 16%)2408(Top 46%)
10K6.21 mi3.10 mi1818-1841739-1821739-1822057(Top 8%)1968(Top 13%)1968(Top 37%)
15K9.32 mi3.11 mi2006-1881921-1821921-1822512(Top 9%)2408(Top 16%)2408(Top 46%)
20K12.43 mi3.11 mi2181-1752089-1682089-1682718(Top 10%)2598(Top 17%)2598(Top 49%)
Half13.11 mi0.68 mi2181208920892188(Top 8%)2098(Top 14%)2098(Top 40%)
25K15.53 mi2.42 mi2237-562144-552144-552649(Top 10%)2535(Top 17%)2535(Top 48%)
30K18.64 mi3.11 mi2265-282173-292173-292392(Top 9%)2276(Top 15%)2276(Top 43%)
20M20.00 mi1.36 mi2241+242150+232150+232296(Top 9%)2179(Top 14%)2179(Top 41%)
21M21.00 mi1.00 mi2162+792071+792071+791312(Top 5%)1253(Top 8%)1253(Top 24%)
35K21.75 mi0.75 mi2125+372036+352036+351445(Top 5%)1371(Top 9%)1371(Top 26%)
23M23.00 mi1.25 mi2014+1111930+1061930+1061162(Top 4%)1098(Top 7%)1098(Top 21%)
24M24.00 mi1.00 mi1943+711860+701860+701082(Top 4%)1024(Top 7%)1024(Top 19%)
40K24.85 mi0.85 mi1860+831779+811779+81567(Top 2%)536(Top 4%)536(Top 10%)
25.2M25.20 mi0.35 mi1814+461735+441735+44421(Top 2%)399(Top 3%)399(Top 8%)
Finish26.22 mi1.02 mi1747+671668+671668+671088(Top 4%)1037(Top 7%)1037(Top 20%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 9%
×21story building
+97ft-345ft

Overall

2512

Males

2408

M18-39

2408

5K→10K

3.1 - 6.2 mi

Top 8%
×5story building
+79ft-138ft

Overall

2057

Males

1968

M18-39

1968

10K→15K

6.2 - 9.3 mi

Top 9%
×3story building
+67ft-78ft

Overall

2512

Males

2408

M18-39

2408

15K→20K

9.3 - 12.4 mi

Top 10%
×5story building
+106ft-86ft

Overall

2718

Males

2598

M18-39

2598

20K→Half

12.4 - 13.1 mi

Top 8%
×2story building
+19ft-37ft

Overall

2188

Males

2098

M18-39

2098

Half→25K

13.1 - 15.5 mi

Top 10%
×4story building
+66ft-88ft

Overall

2649

Males

2535

M18-39

2535

25K→30K

15.5 - 18.6 mi

Top 9%
×9story building
+181ft-148ft

Overall

2392

Males

2276

M18-39

2276

30K→20M

18.6 - 20.0 mi

Top 9%
×5story building
+64ft-50ft

Overall

2296

Males

2179

M18-39

2179

20M→21M

20.0 - 21.0 mi

Top 5%
×8story building
+106ft-24ft

Overall

1312

Males

1253

M18-39

1253

21M→35K

21.0 - 21.8 mi

Top 5%
×7story building
+17ft-86ft

Overall

1445

Males

1371

M18-39

1371

35K→23M

21.8 - 23.0 mi

Top 4%
×5story building
+23ft-63ft

Overall

1162

Males

1098

M18-39

1098

23M→24M

23.0 - 24.0 mi

Top 4%
×6story building
+12ft-82ft

Overall

1082

Males

1024

M18-39

1024

24M→40K

24.0 - 24.9 mi

Top 2%
×1story
+6ft-20ft

Overall

567

Males

536

M18-39

536

40K→25.2M

24.9 - 25.2 mi

Top 2%
×1story
+13ft-16ft

Overall

421

Males

399

M18-39

399

25.2M→Finish

25.2 - 26.2 mi

Top 4%
×2story building
+22ft-21ft

Overall

1088

Males

1037

M18-39

1037

Passing Analysis

Category:
Athletes Passed
721
Passed By
834
Net Change
-113
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1634
5K → 10K32216-184#1634#1818
10K → 15K16204-188#1818#2006
15K → 20K23198-175#2006#2181
20K → Half11110#2181#2181
Half → 25K2278-56#2181#2237
25K → 30K5886-28#2237#2265
30K → 20M4622+24#2265#2241
20M → 21M834+79#2241#2162
21M → 35K414+37#2162#2125
35K → 23M1143+111#2125#2014
23M → 24M732+71#2014#1943
24M → 40K852+83#1943#1860
40K → 25.2M460+46#1860#1814
25.2M → Finish714+67#1814#1747
TOTALS721834-113
📊

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