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BOSTON MARATHON 2023

Sarah Mackay-Montville

Bib: 27669•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
30:34
Rank: #23024
Start → 5K
30:34 | 9:50/mi
10K· 6.21 mi
1:00:58
Rank: #23192 (-168)
5K → 10K
30:24 | 9:47/mi
15K· 9.32 mi
1:31:31
Rank: #23195 (-3)
10K → 15K
30:33 | 9:50/mi
20K· 12.43 mi
2:02:25
Rank: #23067 (+128)
15K → 20K
30:54 | 9:57/mi
Half· 13.11 mi
2:09:11
Rank: #23058 (+9)
20K → Half
6:46 | 9:55/mi
25K· 15.53 mi
2:34:18
Rank: #23028 (+30)
Half → 25K
25:07 | 10:22/mi
30K· 18.64 mi
3:05:48
Rank: #22735 (+293)
25K → 30K
31:30 | 10:08/mi
20M
3:19:47
Rank: #22608 (+127)
30K → 20M
13:59 | 10:17/mi
21M
3:30:26
Rank: #22478 (+130)
20M → 21M
10:39 | 10:39/mi
35K· 21.75 mi
3:38:54
Rank: #22523 (-45)
21M → 35K
8:28 | 11:19/mi
23M
3:51:40
Rank: #22425 (+98)
35K → 23M
12:46 | 10:12/mi
24M
4:01:34
Rank: #22359 (+66)
23M → 24M
9:54 | 9:54/mi
40K· 24.85 mi
4:10:03
Rank: #22258 (+101)
24M → 40K
8:29 | 9:55/mi
25.2M
4:13:40
Rank: #22221 (+37)
40K → 25.2M
3:37 | 10:29/mi
Finish· 26.22 mi
4:23:10
Rank: #22125 (+96)
25.2M → Finish
9:30 | 9:19/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:09:11
Pace9:51 /mi
2nd Half
Distance13.11 mi
Time2:13:59
Pace10:13 /mi
📊Positive Split: 3.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:5830:349:5030:34
9:50
-
10K
6.21 mi12:18:221:00:589:4930:24
9:47
-0:03
15K
9.32 mi12:48:551:31:319:4930:33
9:50
+0:03
20K
12.43 mi13:19:492:02:259:5130:54
9:57
+0:07
Half
13.11 mi13:26:352:09:119:516:46
9:55
-0:02
25K
15.53 mi13:51:422:34:189:5625:07
10:22
+0:27
30K
18.64 mi14:23:123:05:489:5831:30
10:08
-0:14
20M
20.00 mi14:37:113:19:479:5913:59
10:17
+0:09
21M
21.00 mi14:47:503:30:2610:0110:39
10:39
+0:22
35K
21.75 mi14:56:183:38:5410:048:28
11:19
+0:40
23M
23.00 mi15:09:043:51:4010:0412:46
10:12
-1:07
24M
24.00 mi15:18:584:01:3410:049:54
9:54
-0:18
40K
24.85 mi15:27:274:10:0310:048:29
9:55
+0:01
25.2M
25.20 mi15:31:044:13:4010:043:37
10:29
+0:34
Finish
26.22 mi15:40:344:23:1010:039:30
9:19
-1:10

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

9:19 /mi

Average Pace

10:03 /mi

Slowest Pace

11:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

9:30

4% of race

Time at Steady Pace

2:59:04

68% of race

Time at Slower Pace

1:14:36

28% of race

Average Pace: 10:02 /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 mi11:47:5830:349:5030:34
9:50
#23024
10K
6.21 mi12:18:221:00:589:4930:24
9:47
#23192
15K
9.32 mi12:48:551:31:319:4930:33
9:50
#23195
20K
12.43 mi13:19:492:02:259:5130:54
9:57
#23067
Half
13.11 mi13:26:352:09:119:516:46
9:55
#23058
25K
15.53 mi13:51:422:34:189:5625:07
10:22
#23028
30K
18.64 mi14:23:123:05:489:5831:30
10:08
#22735
20M
20.00 mi14:37:113:19:479:5913:59
10:17
#22608
21M
21.00 mi14:47:503:30:2610:0110:39
10:39
#22478
35K
21.75 mi14:56:183:38:5410:048:28
11:19
#22523
23M
23.00 mi15:09:043:51:4010:0412:46
10:12
#22425
24M
24.00 mi15:18:584:01:3410:049:54
9:54
#22359
40K
24.85 mi15:27:274:10:0310:048:29
9:55
#22258
25.2M
25.20 mi15:31:044:13:4010:043:37
10:29
#22221
Finish
26.22 mi15:40:344:23:1010:039:30
9:19
#22125
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi230249405940523136(Top 87%)9420(Top 82%)9420(Top 193%)
10K6.21 mi3.10 mi23192-1689464-599464-5923239(Top 87%)9469(Top 83%)9469(Top 194%)
15K9.32 mi3.11 mi23195-39453+119453+1123136(Top 87%)9420(Top 82%)9420(Top 193%)
20K12.43 mi3.11 mi23067+1289383+709383+7022770(Top 86%)9228(Top 81%)9228(Top 189%)
Half13.11 mi0.68 mi23058+99380+39380+323122(Top 87%)9417(Top 82%)9417(Top 193%)
25K15.53 mi2.42 mi23028+309369+119369+1122944(Top 86%)9361(Top 82%)9361(Top 192%)
30K18.64 mi3.11 mi22735+2939250+1199250+11921392(Top 80%)8572(Top 75%)8572(Top 176%)
20M20.00 mi1.36 mi22608+1279197+539197+5321261(Top 80%)8561(Top 75%)8561(Top 175%)
21M21.00 mi1.00 mi22478+1309131+669131+6620031(Top 75%)7954(Top 70%)7954(Top 163%)
35K21.75 mi0.75 mi22523-459154-239154-2323840(Top 90%)10050(Top 88%)10050(Top 206%)
23M23.00 mi1.25 mi22425+989108+469108+4620574(Top 77%)8283(Top 73%)8283(Top 170%)
24M24.00 mi1.00 mi22359+669080+289080+2820526(Top 77%)8280(Top 72%)8280(Top 170%)
40K24.85 mi0.85 mi22258+1019030+509030+5019778(Top 74%)7942(Top 70%)7942(Top 163%)
25.2M25.20 mi0.35 mi22221+379009+219009+2119133(Top 72%)7594(Top 66%)7594(Top 155%)
Finish26.22 mi1.02 mi22125+968975+348975+3419487(Top 73%)7730(Top 68%)7730(Top 158%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 87%
×21stories
+97ft-345ft

Overall

23136

Females

9420

F18-39

9420

5K→10K

3.1 - 6.2 mi

Top 87%
×5stories
+79ft-138ft

Overall

23239

Females

9469

F18-39

9469

10K→15K

6.2 - 9.3 mi

Top 87%
×3stories
+67ft-78ft

Overall

23136

Females

9420

F18-39

9420

15K→20K

9.3 - 12.4 mi

Top 86%
×5stories
+106ft-86ft

Overall

22770

Females

9228

F18-39

9228

20K→Half

12.4 - 13.1 mi

Top 87%
×2stories
+19ft-37ft

Overall

23122

Females

9417

F18-39

9417

Half→25K

13.1 - 15.5 mi

Top 86%
×4stories
+66ft-88ft

Overall

22944

Females

9361

F18-39

9361

25K→30K

15.5 - 18.6 mi

Top 80%
×9stories
+181ft-148ft

Overall

21392

Females

8572

F18-39

8572

30K→20M

18.6 - 20.0 mi

Top 80%
×5stories
+64ft-50ft

Overall

21261

Females

8561

F18-39

8561

20M→21M

20.0 - 21.0 mi

Top 75%
×8stories
+106ft-24ft

Overall

20031

Females

7954

F18-39

7954

21M→35K

21.0 - 21.8 mi

Top 90%
×7stories
+17ft-86ft

Overall

23840

Females

10050

F18-39

10050

35K→23M

21.8 - 23.0 mi

Top 77%
×5stories
+23ft-63ft

Overall

20574

Females

8283

F18-39

8283

23M→24M

23.0 - 24.0 mi

Top 77%
×6stories
+12ft-82ft

Overall

20526

Females

8280

F18-39

8280

24M→40K

24.0 - 24.9 mi

Top 74%
×1story
+6ft-20ft

Overall

19778

Females

7942

F18-39

7942

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1story
+13ft-16ft

Overall

19133

Females

7594

F18-39

7594

25.2M→Finish

25.2 - 26.2 mi

Top 73%
×2stories
+22ft-21ft

Overall

19487

Females

7730

F18-39

7730

Passing Analysis

Category:
Athletes Passed
1633
Passed By
734
Net Change
+899
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23024
5K → 10K147315-168#23024#23192
10K → 15K135138-3#23192#23195
15K → 20K18961+128#23195#23067
20K → Half3223+9#23067#23058
Half → 25K10272+30#23058#23028
25K → 30K3029+293#23028#22735
30K → 20M13710+127#22735#22608
20M → 21M1399+130#22608#22478
21M → 35K2166-45#22478#22523
35K → 23M10911+98#22523#22425
23M → 24M7711+66#22425#22359
24M → 40K1032+101#22359#22258
40K → 25.2M392+37#22258#22221
25.2M → Finish1015+96#22221#22125
TOTALS1633734+899
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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