Caitrin Macdonald

Somerville, MA

Bib: 38510 F 47

Masters

0:00

0:00

/ mi

Masters

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Overall

#0 / 61036

Top 32%

Gender (Female)

#0 / 28901

Top 21%

Masters (Masters Women)

#0 / 10324

Top 18%

Division (W45-49)

#0 / 2443

Top 21%

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

9:11/mi

27:33

↑ 182 ft↓ 221 ft0.2% grade

79 ft elev

5K· 3.11 mi

9:12/mi

28:32

→ flat

76 ft elev

8:51/mi

36:26

↑ 23 ft↓ 16 ft0.1% grade

84 ft elev

8:42/mi

45:08

↑ 13 ft↓ 30 ft0.3% grade

70 ft elev

8:54/mi

54:02

↑ 16 ft↓ 36 ft0.4% grade

47 ft elev

10K· 6.21 mi

8:49/mi

55:55

→ flat0.6% grade

58 ft elev

8:56/mi

1:02:56

↓ 30 ft0.6% grade

33 ft elev

9:20/mi

1:12:16

↑ 30 ft0.4% grade

54 ft elev

9:18/mi

1:21:34

↑ 61 ft↓ 33 ft0.5% grade

81 ft elev

15K· 9.32 mi

9:12/mi

1:24:31

↓ 13 ft0.8% grade

66 ft elev

10M

9:05/mi

1:30:41

↓ 36 ft0.9% grade

33 ft elev

11M

9:22/mi

1:40:03

↑ 43 ft0.7% grade

72 ft elev

12M

9:33/mi

1:49:36

↓ 46 ft0.8% grade

33 ft elev

20K· 12.43 mi

9:03/mi

1:53:28

↑ 16 ft0.7% grade

54 ft elev

13M

9:32/mi

1:58:55

↓ 26 ft0.8% grade

36 ft elev

Half· 13.11 mi

9:32/mi

1:59:58

→ flat0.5% grade

49 ft elev

14M

9:36/mi

2:08:31

↑ 23 ft↓ 39 ft0.3% grade

36 ft elev

15M

9:18/mi

2:17:49

↑ 62 ft1.1% grade

93 ft elev

25K· 15.53 mi

9:33/mi

2:22:55

↑ 68 ft2.4% grade

169 ft elev

16M

8:48/mi

2:27:01

↓ 45 ft1.7% grade

125 ft elev

17M

9:06/mi

2:36:07

↑ 10 ft↓ 59 ft0.9% grade

59 ft elev

18M

8:52/mi

2:44:59

↑ 30 ft↓ 49 ft0.4% grade

39 ft elev

30K· 18.64 mi

9:07/mi

2:50:50

→ flat

41 ft elev

19M

8:57/mi

2:54:03

→ flat0.2% grade

39 ft elev

20M

9:23/mi

3:03:26

↑ 43 ft0.7% grade

72 ft elev

21M

9:19/mi

3:12:45

↑ 20 ft↓ 39 ft0.4% grade

53 ft elev

35K· 21.75 mi

9:03/mi

3:19:31

↑ 20 ft↓ 23 ft

52 ft elev

22M

9:31/mi

3:21:55

→ flat0.2% grade

51 ft elev

23M

9:16/mi

3:31:11

↓ 10 ft0.1% grade

46 ft elev

24M

9:32/mi

3:40:43

↑ 92 ft1.7% grade

138 ft elev

40K· 24.85 mi

9:20/mi

3:48:42

↑ 13 ft↓ 62 ft1.1% grade

93 ft elev

25M

9:10/mi

3:50:02

↑ 10 ft1.3% grade

111 ft elev

26M

8:50/mi

3:58:52

↑ 39 ft↓ 39 ft

112 ft elev

Finish· 26.22 mi

8:50/mi

4:00:48

↓ 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

1:59:589:09 /mi⚖️ balanced

2nd Half

2:00:509:13 /mi⚖️ balanced

Even split — consistent pacing between halves

AI Race Performance Report

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Checkpoint Splits

Checkpoint	Time	Avg Pace	Segment Length	Segment Time	Segment Pace	Diff
3M	27:33	9:11	3.00 mi	27:33	9:11	-
5K	28:32	9:11	0.11 mi	0:59	9:12	+0:01
4M	36:26	9:07	0.89 mi	7:54	8:51	-0:21
5M	45:08	9:02	1.00 mi	8:42	8:42	-0:09
6M	54:02	9:00	1.00 mi	8:54	8:54	+0:12
10K	55:55	9:00	0.21 mi	1:53	8:49	-0:05
7M	1:02:56	8:59	0.79 mi	7:01	8:56	+0:07
8M	1:12:16	9:02	1.00 mi	9:20	9:20	+0:24
9M	1:21:34	9:04	1.00 mi	9:18	9:18	-0:02
15K	1:24:31	9:04	0.32 mi	2:57	9:12	-0:06
10M	1:30:41	9:04	0.68 mi	6:10	9:05	-0:07
11M	1:40:03	9:06	1.00 mi	9:22	9:22	+0:17
12M	1:49:36	9:08	1.00 mi	9:33	9:33	+0:11
20K	1:53:28	9:08	0.43 mi	3:52	9:03	-0:30
13M	1:58:55	9:09	0.57 mi	5:27	9:32	+0:29
Half(13.11 mi)	1:59:58	9:09	0.11 mi	1:03	9:32	0:00
14M	2:08:31	9:11	0.89 mi	8:33	9:36	+0:04
15M	2:17:49	9:11	1.00 mi	9:18	9:18	-0:18
25K	2:22:55	9:12	0.53 mi	5:06	9:33	+0:15
16M	2:27:01	9:11	0.47 mi	4:06	8:48	-0:45
17M	2:36:07	9:11	1.00 mi	9:06	9:06	+0:18
18M	2:44:59	9:10	1.00 mi	8:52	8:52	-0:14
30K	2:50:50	9:10	0.64 mi	5:51	9:07	+0:15
19M	2:54:03	9:10	0.36 mi	3:13	8:57	-0:10
20M	3:03:26	9:10	1.00 mi	9:23	9:23	+0:26
21M	3:12:45	9:11	1.00 mi	9:19	9:19	-0:04
35K	3:19:31	9:10	0.75 mi	6:46	9:03	-0:16
22M	3:21:55	9:11	0.25 mi	2:24	9:31	+0:28
23M	3:31:11	9:11	1.00 mi	9:16	9:16	-0:15
24M	3:40:43	9:12	1.00 mi	9:32	9:32	+0:16
40K	3:48:42	9:12	0.85 mi	7:59	9:20	-0:12
25M	3:50:02	9:12	0.15 mi	1:20	9:10	-0:10
26M	3:58:52	9:11	1.00 mi	8:50	8:50	-0:20
Finish(26.22 mi)	4:00:48	9:11	0.22 mi	1:56	8:50	0:00

Trend:

Faster pace

Steady pace

Slower pace

Est.Checkpoint not recorded (estimated)

~Segment time uses estimated prior

Checkpoints & Pacing

Pace Line

Fastest Pace

8:42 /mi

Average Pace

9:11 /mi

Slowest Pace

9:36 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

3:52:15

96% of race

Time at Steady Pace

8:33

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:11 /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	Females	W45-49	Seg. Overall	Seg. Females	Seg. W45-49
3M	3.00 mi	24859	7782	648	23411	7391	580
5K	0.11 mi	24821+38	7777+5	645+3	26349	8690	738
4M	0.89 mi	24218+603	7485+292	623+22	21942	6482	574
5M	1.00 mi	23457+761	7178+307	609+14	20980	6101	539
6M	1.00 mi	23335+122	7129+49	606+3	22961	6999	603
10K	0.21 mi	23199+136	7068+61	604+2	20048	5717	502
7M	0.79 mi	23459-260	7158-90	607-3	26012	8195	687
8M	1.00 mi	23903-444	7324-166	617-10	27195	8740	704
9M	1.00 mi	24131-228	7399-75	619-2	26260	8271	670
15K	0.32 mi	24215-84	7429-30	622-3	26916	8699	723
10M	0.68 mi	24167+48	7412+17	621+1	24132	7519	615
11M	1.00 mi	24407-240	7517-105	628-7	25782	8225	654
12M	1.00 mi	24833-426	7717-200	634-6	28200	9352	744
20K	0.43 mi	24674+159	7649+68	632+2	21290	6337	528
13M	0.57 mi	24590+84	7632+17	631+1	23411	7391	580
Half(13.11 mi)	0.11 mi	24605-15	7640-8	631	24875	8090	629
14M	0.89 mi	24777-172	7736-96	636-5	27020	9106	723
15M	1.00 mi	24173+604	7507+229	623+13	18574	5399	443
25K	0.53 mi	23860+313	7388+119	617+6	18867	5650	469
16M	0.47 mi	23662+198	7322+66	609+8	18539	5453	481
17M	1.00 mi	23300+362	7194+128	602+7	19350	5893	484
18M	1.00 mi	22748+552	6991+203	596+6	16424	4744	406
30K	0.64 mi	22414+334	6889+102	588+8	17525	5412	451
19M	0.36 mi	22227+187	6839+50	585+3	17306	5338	449
20M	1.00 mi	21653+574	6671+168	567+18	16816	5278	446
21M	1.00 mi	21134+519	6523+148	554+13	15282	4755	397
35K	0.75 mi	20676+458	6383+140	541+13	13403	4074	348
22M	0.25 mi	20564+112	6349+34	540+1	16253	5265	441
23M	1.00 mi	20171+393	6251+98	533+7	14725	4791	393
24M	1.00 mi	19729+442	6127+124	527+6	13878	4565	373
40K	0.85 mi	19562+167	6092+35	522+5	15248	5338	427
25M	0.15 mi	19534+28	6086+6	521+1	15237	5186	415
26M	1.00 mi	19258+276	5997+89	510+11	12392	4094	322
Finish(26.22 mi)	0.22 mi	19251+7	5997	510	18459	6812	474

Segment Performance Analysis

20K→13M

0.0 - 3.0 mi

Top 38%

118 ft79 ft

↑ 182ft↓ 221ft

194 ft

Overall

23411

Females

7391

No position changes recorded for this athlete.

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