Boston Marathon logo
BOSTON MARATHON 2023

Jameson Kloeckner

MI

Bib: 1170 M

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 3%
Gender (Male)
#0 / 15176
Top 6%
Division (M18-39)
#0 / 5285
Top 14%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
5:36/mi
17:23
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
5:41/mi
35:01
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
5:57/mi
53:29
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
6:13/mi
1:12:48
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
6:12/mi
1:17:02
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
6:23/mi
1:32:31
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
6:40/mi
1:53:13
↑ 181↓ 1480.2%
138 ft elev
20M
6:40/mi
2:02:17
↑ 64↓ 500.2%
148 ft elev
21M
6:51/mi
2:09:08
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
6:22/mi
2:13:54
↑ 17↓ 861.7%
156 ft elev
23M
6:43/mi
2:22:19
↑ 23↓ 630.6%
116 ft elev
24M
6:33/mi
2:28:52
↓ 821.3%
34 ft elev
40K· 24.85 mi
6:44/mi
2:34:37
↓ 200.3%
20 ft elev
25.2M
7:00/mi
2:37:02
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
6:28/mi
2:43:37
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Is this your race?

Claim it for a free AI report on this race

A one-of-a-kind AI Race Performance Report that reads your race like a coach. A plain-English story of how you raced, where you surged and faded, and what it all means. Emailed to you, free.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:17:02
Pace5:53 /mi
2nd Half
Distance13.11 mi
Time1:26:35
Pace6:36 /mi
📊Positive Split: 12.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:17:4117:235:3617:23
5:36
-
10K
6.21 mi10:35:1935:015:3817:38
5:41
+0:05
15K
9.32 mi10:53:4753:295:4418:28
5:57
+0:16
20K
12.43 mi11:13:061:12:485:5119:19
6:13
+0:16
Half
13.11 mi11:17:201:17:025:534:14
6:12
-0:01
25K
15.53 mi11:32:491:32:315:5715:29
6:23
+0:11
30K
18.64 mi11:53:311:53:136:0420:42
6:40
+0:17
20M
20.00 mi12:02:352:02:176:079:04
6:40
0:00
21M
21.00 mi12:09:262:09:086:096:51
6:51
+0:11
35K
21.75 mi12:14:122:13:546:094:46
6:22
-0:29
23M
23.00 mi12:22:372:22:196:118:25
6:43
+0:21
24M
24.00 mi12:29:102:28:526:126:33
6:33
-0:10
40K
24.85 mi12:34:552:34:376:135:45
6:44
+0:11
25.2M
25.20 mi12:37:202:37:026:142:25
7:00
+0:16
Finish
26.22 mi12:43:552:43:376:156:35
6:28
-0:32

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

5:36 /mi

Average Pace

6:15 /mi

Slowest Pace

7:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:17:02

47% of race

Time at Steady Pace

33:23

20% of race

Time at Slower Pace

53:12

33% of race

Average Pace: 6:14 /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 mi10:17:4117:235:3617:23
5:36
#183
10K
6.21 mi10:35:1935:015:3817:38
5:41
#223
15K
9.32 mi10:53:4753:295:4418:28
5:57
#326
20K
12.43 mi11:13:061:12:485:5119:19
6:13
#430
Half
13.11 mi11:17:201:17:025:534:14
6:12
#456
25K
15.53 mi11:32:491:32:315:5715:29
6:23
#556
30K
18.64 mi11:53:311:53:136:0420:42
6:40
#720
20M
20.00 mi12:02:352:02:176:079:04
6:40
#777
21M
21.00 mi12:09:262:09:086:096:51
6:51
#798
35K
21.75 mi12:14:122:13:546:094:46
6:22
#812
23M
23.00 mi12:22:372:22:196:118:25
6:43
#849
24M
24.00 mi12:29:102:28:526:126:33
6:33
#878
40K
24.85 mi12:34:552:34:376:135:45
6:44
#900
25.2M
25.20 mi12:37:202:37:026:142:25
7:00
#901
Finish
26.22 mi12:43:552:43:376:156:35
6:28
#912
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi183183183593(Top 2%)550(Top 4%)550(Top 10%)
10K6.21 mi3.10 mi223-40196-13196-13278(Top 1%)248(Top 2%)248(Top 5%)
15K9.32 mi3.11 mi326-103293-97293-97593(Top 2%)550(Top 4%)550(Top 10%)
20K12.43 mi3.11 mi430-104395-102395-1021095(Top 4%)1044(Top 7%)1044(Top 20%)
Half13.11 mi0.68 mi456-26420-25420-251346(Top 5%)1286(Top 8%)1286(Top 24%)
25K15.53 mi2.42 mi556-100516-96516-961655(Top 6%)1585(Top 10%)1585(Top 30%)
30K18.64 mi3.11 mi720-164678-162678-1622222(Top 8%)2118(Top 14%)2118(Top 40%)
20M20.00 mi1.36 mi777-57735-57735-572135(Top 8%)2030(Top 13%)2030(Top 38%)
21M21.00 mi1.00 mi798-21755-20755-201556(Top 6%)1480(Top 10%)1480(Top 28%)
35K21.75 mi0.75 mi812-14768-13768-131810(Top 7%)1716(Top 11%)1716(Top 32%)
23M23.00 mi1.25 mi849-37803-35803-352237(Top 8%)2108(Top 14%)2108(Top 40%)
24M24.00 mi1.00 mi878-29831-28831-282275(Top 9%)2126(Top 14%)2126(Top 40%)
40K24.85 mi0.85 mi900-22853-22853-222427(Top 9%)2247(Top 15%)2247(Top 43%)
25.2M25.20 mi0.35 mi901-1854-1854-11716(Top 6%)1609(Top 11%)1609(Top 30%)
Finish26.22 mi1.02 mi912-11865-11865-112270(Top 9%)2098(Top 14%)2098(Top 40%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 2%
×21story building
+97ft-345ft

Overall

593

Males

550

M18-39

550

5K→10K

3.1 - 6.2 mi

Top 1%
×5story building
+79ft-138ft

Overall

278

Males

248

M18-39

248

10K→15K

6.2 - 9.3 mi

Top 2%
×3story building
+67ft-78ft

Overall

593

Males

550

M18-39

550

15K→20K

9.3 - 12.4 mi

Top 4%
×5story building
+106ft-86ft

Overall

1095

Males

1044

M18-39

1044

20K→Half

12.4 - 13.1 mi

Top 5%
×2story building
+19ft-37ft

Overall

1346

Males

1286

M18-39

1286

Half→25K

13.1 - 15.5 mi

Top 6%
×4story building
+66ft-88ft

Overall

1655

Males

1585

M18-39

1585

25K→30K

15.5 - 18.6 mi

Top 8%
×9story building
+181ft-148ft

Overall

2222

Males

2118

M18-39

2118

30K→20M

18.6 - 20.0 mi

Top 8%
×5story building
+64ft-50ft

Overall

2135

Males

2030

M18-39

2030

20M→21M

20.0 - 21.0 mi

Top 6%
×8story building
+106ft-24ft

Overall

1556

Males

1480

M18-39

1480

21M→35K

21.0 - 21.8 mi

Top 7%
×7story building
+17ft-86ft

Overall

1810

Males

1716

M18-39

1716

35K→23M

21.8 - 23.0 mi

Top 8%
×5story building
+23ft-63ft

Overall

2237

Males

2108

M18-39

2108

23M→24M

23.0 - 24.0 mi

Top 9%
×6story building
+12ft-82ft

Overall

2275

Males

2126

M18-39

2126

24M→40K

24.0 - 24.9 mi

Top 9%
×1story
+6ft-20ft

Overall

2427

Males

2247

M18-39

2247

40K→25.2M

24.9 - 25.2 mi

Top 6%
×1story
+13ft-16ft

Overall

1716

Males

1609

M18-39

1609

25.2M→Finish

25.2 - 26.2 mi

Top 9%
×2story building
+22ft-21ft

Overall

2270

Males

2098

M18-39

2098

Passing Analysis

Category:
Athletes Passed
61
Passed By
790
Net Change
-729
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#183
5K → 10K747-40#183#223
10K → 15K0103-103#223#326
15K → 20K0104-104#326#430
20K → Half127-26#430#456
Half → 25K1101-100#456#556
25K → 30K1165-164#556#720
30K → 20M360-57#720#777
20M → 21M930-21#777#798
21M → 35K216-14#798#812
35K → 23M845-37#812#849
23M → 24M635-29#849#878
24M → 40K527-22#878#900
40K → 25.2M67-1#900#901
25.2M → Finish1223-11#901#912
TOTALS61790-729
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing