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BOSTON MARATHON 2023

Milagros Serrano

Bib: 26260•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F55-59)
#0 / 815
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
11:27/mi
35:33
↑ 97↓ 3451.5%
10K· 6.21 mi
12:18/mi
1:13:46
↑ 79↓ 1380.4%
15K· 9.32 mi
12:46/mi
1:53:25
↑ 67↓ 78
20K· 12.43 mi
13:41/mi
2:35:57
↑ 106↓ 860.1%
Half· 13.11 mi
14:10/mi
2:45:37
↑ 19↓ 370.5%
25K· 15.53 mi
15:06/mi
3:22:13
↑ 66↓ 880.2%
30K· 18.64 mi
15:03/mi
4:09:00
↑ 181↓ 1480.2%
20M
15:35/mi
4:30:10
↑ 64↓ 500.2%
21M
17:21/mi
4:47:31
↑ 106↓ 241.6%
35K· 21.75 mi
14:41/mi
4:58:30
↑ 17↓ 861.7%
23M
15:11/mi
5:17:31
↑ 23↓ 630.6%
24M
13:39/mi
5:31:10
↓ 821.3%
40K· 24.85 mi
14:51/mi
5:43:52
↓ 200.3%
25.2M
15:40/mi
5:49:16
↑ 13↓ 160.2%
Finish· 26.22 mi
15:42/mi
6:05:16
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:45:37
Pace12:38 /mi
2nd Half
Distance13.11 mi
Time3:19:39
Pace15:14 /mi
📊Positive Split: 20.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:5235:3311:2735:33
11:27
-
10K
6.21 mi12:33:051:13:4611:5238:13
12:18
+0:51
15K
9.32 mi13:12:441:53:2512:1039:39
12:46
+0:28
20K
12.43 mi13:55:162:35:5712:3342:32
13:41
+0:55
Half
13.11 mi14:04:562:45:3712:389:40
14:10
+0:29
25K
15.53 mi14:41:323:22:1313:0136:36
15:06
+0:56
30K
18.64 mi15:28:194:09:0013:2146:47
15:03
-0:03
20M
20.00 mi15:49:294:30:1013:3021:10
15:35
+0:32
21M
21.00 mi16:06:504:47:3113:4117:21
17:21
+1:46
35K
21.75 mi16:17:494:58:3013:4410:59
14:41
-2:40
23M
23.00 mi16:36:505:17:3113:4819:01
15:11
+0:30
24M
24.00 mi16:50:295:31:1013:4813:39
13:39
-1:32
40K
24.85 mi17:03:115:43:5213:5012:42
14:51
+1:12
25.2M
25.20 mi17:08:355:49:1613:525:24
15:40
+0:49
Finish
26.22 mi17:24:356:05:1613:5616:00
15:42
+0:02

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

11:27 /mi

Average Pace

13:56 /mi

Slowest Pace

17:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:49:36

46% of race

Time at Steady Pace

2:15:45

37% of race

Time at Slower Pace

59:55

16% of race

Average Pace: 13:56 /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 mi11:54:5235:3311:2735:33
11:27
#26171
10K
6.21 mi12:33:051:13:4611:5238:13
12:18
#26335
15K
9.32 mi13:12:441:53:2512:1039:39
12:46
#26379
20K
12.43 mi13:55:162:35:5712:3342:32
13:41
#26428
Half
13.11 mi14:04:562:45:3712:389:40
14:10
#26451
25K
15.53 mi14:41:323:22:1313:0136:36
15:06
#26504
30K
18.64 mi15:28:194:09:0013:2146:47
15:03
#26522
20M
20.00 mi15:49:294:30:1013:3021:10
15:35
#26533
21M
21.00 mi16:06:504:47:3113:4117:21
17:21
#26551
35K
21.75 mi16:17:494:58:3013:4410:59
14:41
#26556
23M
23.00 mi16:36:505:17:3113:4819:01
15:11
#26561
24M
24.00 mi16:50:295:31:1013:4813:39
13:39
#26558
40K
24.85 mi17:03:115:43:5213:5012:42
14:51
#26556
25.2M
25.20 mi17:08:355:49:1613:525:24
15:40
#26556
Finish
26.22 mi17:24:356:05:1613:5616:00
15:42
#26577
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi26171111591115926424(Top 99%)11312(Top 99%)11312(Top 1388%)
10K6.21 mi3.10 mi26335-16411252-9311252-9326414(Top 99%)11307(Top 99%)11307(Top 1387%)
15K9.32 mi3.11 mi26379-4411282-3011282-3026424(Top 99%)11312(Top 99%)11312(Top 1388%)
20K12.43 mi3.11 mi26428-4911313-3111313-3126470(Top 99%)11332(Top 99%)11332(Top 1390%)
Half13.11 mi0.68 mi26451-2311327-1411327-1426554(Top 100%)11388(Top 100%)11388(Top 1397%)
25K15.53 mi2.42 mi26504-5311366-3911366-3926563(Top 100%)11393(Top 100%)11393(Top 1398%)
30K18.64 mi3.11 mi26522-1811375-911375-926433(Top 99%)11331(Top 99%)11331(Top 1390%)
20M20.00 mi1.36 mi26533-1111380-511380-526438(Top 99%)11339(Top 99%)11339(Top 1391%)
21M21.00 mi1.00 mi26551-1811387-711387-726492(Top 100%)11355(Top 99%)11355(Top 1393%)
35K21.75 mi0.75 mi26556-511393-611393-626354(Top 99%)11308(Top 99%)11308(Top 1387%)
23M23.00 mi1.25 mi26561-511397-411397-426342(Top 99%)11305(Top 99%)11305(Top 1387%)
24M24.00 mi1.00 mi26558+311393+411393+425900(Top 97%)11116(Top 97%)11116(Top 1364%)
40K24.85 mi0.85 mi26556+211391+211391+226098(Top 98%)11220(Top 98%)11220(Top 1377%)
25.2M25.20 mi0.35 mi2655611393-211393-226004(Top 98%)11174(Top 98%)11174(Top 1371%)
Finish26.22 mi1.02 mi26577-2111403-1011403-1026546(Top 100%)11401(Top 100%)11401(Top 1399%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 99%
×21story building
+97ft-345ft

Overall

26424

Females

11312

F55-59

11312

5K→10K

3.1 - 6.2 mi

Top 99%
×5story building
+79ft-138ft

Overall

26414

Females

11307

F55-59

11307

10K→15K

6.2 - 9.3 mi

Top 99%
×3story building
+67ft-78ft

Overall

26424

Females

11312

F55-59

11312

15K→20K

9.3 - 12.4 mi

Top 99%
×5story building
+106ft-86ft

Overall

26470

Females

11332

F55-59

11332

20K→Half

12.4 - 13.1 mi

Top 100%
×2story building
+19ft-37ft

Overall

26554

Females

11388

F55-59

11388

Half→25K

13.1 - 15.5 mi

Top 100%
×4story building
+66ft-88ft

Overall

26563

Females

11393

F55-59

11393

25K→30K

15.5 - 18.6 mi

Top 99%
×9story building
+181ft-148ft

Overall

26433

Females

11331

F55-59

11331

30K→20M

18.6 - 20.0 mi

Top 99%
×5story building
+64ft-50ft

Overall

26438

Females

11339

F55-59

11339

20M→21M

20.0 - 21.0 mi

Top 100%
×8story building
+106ft-24ft

Overall

26492

Females

11355

F55-59

11355

21M→35K

21.0 - 21.8 mi

Top 99%
×7story building
+17ft-86ft

Overall

26354

Females

11308

F55-59

11308

35K→23M

21.8 - 23.0 mi

Top 99%
×5story building
+23ft-63ft

Overall

26342

Females

11305

F55-59

11305

23M→24M

23.0 - 24.0 mi

Top 97%
×6story building
+12ft-82ft

Overall

25900

Females

11116

F55-59

11116

24M→40K

24.0 - 24.9 mi

Top 98%
×1story
+6ft-20ft

Overall

26098

Females

11220

F55-59

11220

40K→25.2M

24.9 - 25.2 mi

Top 98%
×1story
+13ft-16ft

Overall

26004

Females

11174

F55-59

11174

25.2M→Finish

25.2 - 26.2 mi

Top 100%
×2story building
+22ft-21ft

Overall

26546

Females

11401

F55-59

11401

Passing Analysis

Category:
Athletes Passed
78
Passed By
484
Net Change
-406
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26171
5K → 10K10174-164#26171#26335
10K → 15K1862-44#26335#26379
15K → 20K1867-49#26379#26428
20K → Half225-23#26428#26451
Half → 25K255-53#26451#26504
25K → 30K1028-18#26504#26522
30K → 20M314-11#26522#26533
20M → 21M018-18#26533#26551
21M → 35K27-5#26551#26556
35K → 23M16-5#26556#26561
23M → 24M52+3#26561#26558
24M → 40K53+2#26558#26556
40K → 25.2M220#26556#26556
25.2M → Finish021-21#26556#26577
TOTALS78484-406
📊

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