Jason Buck

South Boston, MA

Bib: 10815 M 29

0:00

0:00

/ mi

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Overall

#0 / 61036

Top 19%

Gender (Male)

#0 / 31978

Top 26%

Division (M25-29)

#0 / 5339

Top 31%

Race Day Weather

50°/40°F

clear sky

Race Timeline

Ribbon color based on

FasterSteadySlower· vs. your average pace

Mile 1 · 259 ft

Mile 2 · 64 ft

Start

0:00

Race begins

118 ft elev

8:47/mi

26:22

↑ 182 ft↓ 221 ft0.2% grade

79 ft elev

5K· 3.11 mi

8:35/mi

27:17

→ flat

76 ft elev

8:19/mi

34:43

↑ 23 ft↓ 16 ft0.1% grade

84 ft elev

8:19/mi

43:02

↑ 13 ft↓ 30 ft0.3% grade

70 ft elev

8:23/mi

51:25

↑ 16 ft↓ 36 ft0.4% grade

47 ft elev

10K· 6.21 mi

8:16/mi

53:11

→ flat0.6% grade

58 ft elev

8:19/mi

59:43

↓ 30 ft0.6% grade

33 ft elev

8:19/mi

1:08:02

↑ 30 ft0.4% grade

54 ft elev

8:24/mi

1:16:26

↑ 61 ft↓ 33 ft0.5% grade

81 ft elev

15K· 9.32 mi

10:42/mi

1:19:52

↓ 13 ft0.8% grade

66 ft elev

10M

8:01/mi

1:25:19

↓ 36 ft0.9% grade

33 ft elev

11M

8:16/mi

1:33:35

↑ 43 ft0.7% grade

72 ft elev

12M

8:24/mi

1:41:59

↓ 46 ft0.8% grade

33 ft elev

20K· 12.43 mi

8:21/mi

1:45:33

↑ 16 ft0.7% grade

54 ft elev

13M

8:36/mi

1:50:28

↓ 26 ft0.8% grade

36 ft elev

Half· 13.11 mi

8:36/mi

1:51:25

→ flat0.5% grade

49 ft elev

14M

8:30/mi

1:58:59

↑ 23 ft↓ 39 ft0.3% grade

36 ft elev

15M

8:40/mi

2:07:39

↑ 62 ft1.1% grade

93 ft elev

25K· 15.53 mi

9:05/mi

2:12:30

↑ 68 ft2.4% grade

169 ft elev

16M

8:39/mi

2:16:32

↓ 45 ft1.7% grade

125 ft elev

17M

8:22/mi

2:24:54

↑ 10 ft↓ 59 ft0.9% grade

59 ft elev

18M

8:14/mi

2:33:08

↑ 30 ft↓ 49 ft0.4% grade

39 ft elev

30K· 18.64 mi

9:21/mi

2:39:08

→ flat

41 ft elev

19M

7:28/mi

2:41:49

→ flat0.2% grade

39 ft elev

20M

8:39/mi

2:50:28

↑ 43 ft0.7% grade

72 ft elev

21M

8:33/mi

2:59:01

↑ 20 ft↓ 39 ft0.4% grade

53 ft elev

35K· 21.75 mi

8:24/mi

3:05:18

↑ 20 ft↓ 23 ft

52 ft elev

22M

8:47/mi

3:07:31

→ flat0.2% grade

51 ft elev

23M

8:20/mi

3:15:51

↓ 10 ft0.1% grade

46 ft elev

24M

8:38/mi

3:24:29

↑ 92 ft1.7% grade

138 ft elev

40K· 24.85 mi

8:31/mi

3:31:46

↑ 13 ft↓ 62 ft1.1% grade

93 ft elev

25M

8:15/mi

3:32:58

↑ 10 ft1.3% grade

111 ft elev

26M

8:15/mi

3:41:13

↑ 39 ft↓ 39 ft

112 ft elev

Finish· 26.22 mi

7:51/mi

3:42:56

↓ 10 ft0.9% grade

102 ft elev

Course Elevation

926ft

Total climb

232ft

Range

30 to 262 ft

943ft

Total descent

About the height of two Statues of Liberty

The Course

Half Splits

1st Half· via Half

1:51:258:30 /mi⚖️ balanced

2nd Half

1:51:318:30 /mi⚖️ balanced

Even split — consistent pacing between halves

AI Race Performance Report

Jason's race, broken down like a coach

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Checkpoint Splits

Checkpoint	Time	Avg Pace	Segment Length	Segment Time	Segment Pace	Diff
3M	26:22	8:47	3.00 mi	26:22	8:47	-
5K	27:17	8:47	0.11 mi	0:55	8:35	-0:12
4M	34:43	8:41	0.89 mi	7:26	8:19	-0:16
5M	43:02	8:36	1.00 mi	8:19	8:19	0:00
6M	51:25	8:34	1.00 mi	8:23	8:23	+0:04
10K	53:11	8:34	0.21 mi	1:46	8:16	-0:07
7M	59:43	8:32	0.79 mi	6:32	8:19	+0:03
8M	1:08:02	8:30	1.00 mi	8:19	8:19	0:00
9M	1:16:26	8:30	1.00 mi	8:24	8:24	+0:05
15K	1:19:52	8:34	0.32 mi	3:26	10:42	+2:18
10M	1:25:19	8:32	0.68 mi	5:27	8:01	-2:41
11M	1:33:35	8:30	1.00 mi	8:16	8:16	+0:15
12M	1:41:59	8:30	1.00 mi	8:24	8:24	+0:08
20K	1:45:33	8:30	0.43 mi	3:34	8:21	-0:03
13M	1:50:28	8:30	0.57 mi	4:55	8:36	+0:15
Half(13.11 mi)	1:51:25	8:30	0.11 mi	0:57	8:36	0:00
14M	1:58:59	8:30	0.89 mi	7:34	8:30	-0:06
15M	2:07:39	8:31	1.00 mi	8:40	8:40	+0:10
25K	2:12:30	8:32	0.53 mi	4:51	9:05	+0:25
16M	2:16:32	8:32	0.47 mi	4:02	8:39	-0:26
17M	2:24:54	8:31	1.00 mi	8:22	8:22	-0:17
18M	2:33:08	8:30	1.00 mi	8:14	8:14	-0:08
30K	2:39:08	8:32	0.64 mi	6:00	9:21	+1:07
19M	2:41:49	8:31	0.36 mi	2:41	7:28	-1:53
20M	2:50:28	8:31	1.00 mi	8:39	8:39	+1:11
21M	2:59:01	8:31	1.00 mi	8:33	8:33	-0:06
35K	3:05:18	8:31	0.75 mi	6:17	8:24	-0:09
22M	3:07:31	8:31	0.25 mi	2:13	8:47	+0:23
23M	3:15:51	8:31	1.00 mi	8:20	8:20	-0:27
24M	3:24:29	8:31	1.00 mi	8:38	8:38	+0:18
40K	3:31:46	8:31	0.85 mi	7:17	8:31	-0:07
25M	3:32:58	8:31	0.15 mi	1:12	8:15	-0:16
26M	3:41:13	8:30	1.00 mi	8:15	8:15	0:00
Finish(26.22 mi)	3:42:56	8:31	0.22 mi	1:43	7:51	-0:24

Trend:

Faster pace

Steady pace

Slower pace

Est.Checkpoint not recorded (estimated)

~Segment time uses estimated prior

Checkpoints & Pacing

Pace Line

Fastest Pace

7:28 /mi

Average Pace

8:31 /mi

Slowest Pace

10:42 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

9:51

4% of race

Time at Steady Pace

2:28:52

67% of race

Time at Slower Pace

1:04:13

29% of race

Average Pace: 8:30 /mi

Loading chart...

Faster pace (< avg)

Steady pace (≈ avg)

Slower pace (> avg)

Heatmap

0mi6.6mi13.1mi19.7mi26.2mi

Pace:

Faster

Steady

Slower

Checkpoint and Segment Rankings

Checkpoint	Seg. Dist	Overall	Males	M25-29	Seg. Overall	Seg. Males	Seg. M25-29
3M	3.00 mi	19086	13716	2580	11826	8975	1751
5K	0.11 mi	18983+103	13639+77	2574+6	17319	12468	2301
4M	0.89 mi	17918+1065	12997+642	2456+118	14712	11036	2104
5M	1.00 mi	17436+482	12714+283	2418+38	15492	11509	2211
6M	1.00 mi	17007+429	12442+272	2366+52	15400	11489	2222
10K	0.21 mi	16812+195	12329+113	2344+22	12811	9803	1891
7M	0.79 mi	16729+83	12284+45	2341+3	16147	12028	2317
8M	1.00 mi	16236+493	11997+287	2294+47	13453	10262	1989
9M	1.00 mi	15881+355	11784+213	2250+44	13617	10389	2010
15K	0.32 mi	16948-1067	12436-652	2391-141	43538	25690	4584
10M	0.68 mi	16427+521	12103+333	2328+63	11137	8668	1664
11M	1.00 mi	15837+590	11740+363	2248+80	11491	8957	1765
12M	1.00 mi	15558+279	11559+181	2211+37	13729	10392	2012
20K	0.43 mi	15421+137	11472+87	2202+9	12319	9472	1858
13M	0.57 mi	15270+151	11370+102	2183+19	11826	8975	1751
Half(13.11 mi)	0.11 mi	15238+32	11344+26	2180+3	13665	10027	1970
14M	0.89 mi	15083+155	11245+99	2171+9	13816	10304	1986
15M	1.00 mi	14714+369	10995+250	2110+61	11694	8939	1774
25K	0.53 mi	14635+79	10948+47	2107+3	13413	9925	1977
16M	0.47 mi	14654-19	10956-8	2114-7	16461	11812	2267
17M	1.00 mi	14373+281	10760+196	2080+34	11380	8619	1702
18M	1.00 mi	14031+342	10515+245	2026+54	10162	7753	1514
30K	0.64 mi	14197-166	10595-80	2060-34	19699	13268	2547
19M	0.36 mi	13876+321	10392+203	2011+49	4196	3477	697
20M	1.00 mi	13540+336	10132+260	1965+46	10098	7506	1457
21M	1.00 mi	13145+395	9839+293	1907+58	8870	6639	1286
35K	0.75 mi	12837+308	9612+227	1852+55	8187	6150	1190
22M	0.25 mi	12760+77	9562+50	1843+9	9511	6990	1364
23M	1.00 mi	12306+454	9224+338	1773+70	7276	5462	1075
24M	1.00 mi	11943+363	8946+278	1721+52	7046	5229	1040
40K	0.85 mi	11709+234	8757+189	1682+39	8180	5841	1163
25M	0.15 mi	11663+46	8726+31	1677+5	6898	5040	1047
26M	1.00 mi	11378+285	8504+222	1640+37	7524	5366	1104
Finish(26.22 mi)	0.22 mi	11326+52	8465+39	1635+5	8003	5709	1255

Segment Performance Analysis

20K→13M

0.0 - 3.0 mi

Top 19%

118 ft79 ft

↑ 182ft↓ 221ft

194 ft

Overall

11826

Males

8975

No position changes recorded for this athlete.

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