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BOSTON MARATHON 2023

Ana Grijalvo

Bib: 18719•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F45-49)
#0 / 1817
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
8:04/mi
25:04
↑ 97↓ 3451.5%
10K· 6.21 mi
8:03/mi
50:04
↑ 79↓ 1380.4%
15K· 9.32 mi
8:15/mi
1:15:41
↑ 67↓ 78
20K· 12.43 mi
8:35/mi
1:42:20
↑ 106↓ 860.1%
Half· 13.11 mi
8:40/mi
1:48:15
↑ 19↓ 370.5%
25K· 15.53 mi
9:40/mi
2:11:42
↑ 66↓ 880.2%
30K· 18.64 mi
10:15/mi
2:43:34
↑ 181↓ 1480.2%
20M
10:30/mi
2:57:50
↑ 64↓ 500.2%
21M
11:42/mi
3:09:32
↑ 106↓ 241.6%
35K· 21.75 mi
9:20/mi
3:16:31
↑ 17↓ 861.7%
23M
10:13/mi
3:29:18
↑ 23↓ 630.6%
24M
9:16/mi
3:38:34
↓ 821.3%
40K· 24.85 mi
9:49/mi
3:46:58
↓ 200.3%
25.2M
11:39/mi
3:50:59
↑ 13↓ 160.2%
Finish· 26.22 mi
9:22/mi
4:00:32
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:15
Pace8:15 /mi
2nd Half
Distance13.11 mi
Time2:12:17
Pace10:05 /mi
📊Positive Split: 22.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:1525:048:0425:04
8:04
-
10K
6.21 mi11:41:1550:048:0325:00
8:03
-0:01
15K
9.32 mi12:06:521:15:418:0725:37
8:15
+0:12
20K
12.43 mi12:33:311:42:208:1426:39
8:35
+0:20
Half
13.11 mi12:39:261:48:158:155:55
8:40
+0:05
25K
15.53 mi13:02:532:11:428:2923:27
9:40
+1:00
30K
18.64 mi13:34:452:43:348:4631:52
10:15
+0:35
20M
20.00 mi13:49:012:57:508:5314:16
10:30
+0:15
21M
21.00 mi14:00:433:09:329:0211:42
11:42
+1:12
35K
21.75 mi14:07:423:16:319:026:59
9:20
-2:22
23M
23.00 mi14:20:293:29:189:0612:47
10:13
+0:53
24M
24.00 mi14:29:453:38:349:069:16
9:16
-0:57
40K
24.85 mi14:38:093:46:589:088:24
9:49
+0:33
25.2M
25.20 mi14:42:103:50:599:104:01
11:39
+1:50
Finish
26.22 mi14:51:434:00:329:119:33
9:22
-2:17

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

8:03 /mi

Average Pace

9:11 /mi

Slowest Pace

11:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:48:15

45% of race

Time at Steady Pace

57:39

24% of race

Time at Slower Pace

1:14:38

31% of race

Average Pace: 9:10 /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 mi11:16:1525:048:0425:04
8:04
#14493
10K
6.21 mi11:41:1550:048:0325:00
8:03
#14811
15K
9.32 mi12:06:521:15:418:0725:37
8:15
#15258
20K
12.43 mi12:33:311:42:208:1426:39
8:35
#15817
Half
13.11 mi12:39:261:48:158:155:55
8:40
#15968
25K
15.53 mi13:02:532:11:428:2923:27
9:40
#17201
30K
18.64 mi13:34:452:43:348:4631:52
10:15
#18426
20M
20.00 mi13:49:012:57:508:5314:16
10:30
#18833
21M
21.00 mi14:00:433:09:329:0211:42
11:42
#19169
35K
21.75 mi14:07:423:16:319:026:59
9:20
#19186
23M
23.00 mi14:20:293:29:189:0612:47
10:13
#19302
24M
24.00 mi14:29:453:38:349:069:16
9:16
#19270
40K
24.85 mi14:38:093:46:589:088:24
9:49
#19278
25.2M
25.20 mi14:42:103:50:599:104:01
11:39
#19371
Finish
26.22 mi14:51:434:00:329:119:33
9:22
#19402
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi144934325432516207(Top 61%)5423(Top 47%)5423(Top 298%)
10K6.21 mi3.10 mi14811-3184532-2074532-20715169(Top 57%)4777(Top 42%)4777(Top 263%)
15K9.32 mi3.11 mi15258-4474826-2944826-29416207(Top 61%)5423(Top 47%)5423(Top 298%)
20K12.43 mi3.11 mi15817-5595193-3675193-36717366(Top 65%)6153(Top 54%)6153(Top 339%)
Half13.11 mi0.68 mi15968-1515290-975290-9718839(Top 71%)6996(Top 61%)6996(Top 385%)
25K15.53 mi2.42 mi17201-12336063-7736063-77321360(Top 80%)8473(Top 74%)8473(Top 466%)
30K18.64 mi3.11 mi18426-12256823-7606823-76021671(Top 81%)8721(Top 76%)8721(Top 480%)
20M20.00 mi1.36 mi18833-4077060-2377060-23721725(Top 82%)8825(Top 77%)8825(Top 486%)
21M21.00 mi1.00 mi19169-3367264-2047264-20422239(Top 84%)9132(Top 80%)9132(Top 503%)
35K21.75 mi0.75 mi19186-177285-217285-2119306(Top 73%)7547(Top 66%)7547(Top 415%)
23M23.00 mi1.25 mi19302-1167355-707355-7020611(Top 77%)8296(Top 73%)8296(Top 457%)
24M24.00 mi1.00 mi19270+327346+97346+918354(Top 69%)7087(Top 62%)7087(Top 390%)
40K24.85 mi0.85 mi19278-87356-107356-1019475(Top 73%)7756(Top 68%)7756(Top 427%)
25.2M25.20 mi0.35 mi19371-937412-567412-5621861(Top 82%)9045(Top 79%)9045(Top 498%)
Finish26.22 mi1.02 mi19402-317440-287440-2819670(Top 74%)7816(Top 68%)7816(Top 430%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21story building
+97ft-345ft

Overall

16207

Females

5423

F45-49

5423

5K→10K

3.1 - 6.2 mi

Top 57%
×5story building
+79ft-138ft

Overall

15169

Females

4777

F45-49

4777

10K→15K

6.2 - 9.3 mi

Top 61%
×3story building
+67ft-78ft

Overall

16207

Females

5423

F45-49

5423

15K→20K

9.3 - 12.4 mi

Top 65%
×5story building
+106ft-86ft

Overall

17366

Females

6153

F45-49

6153

20K→Half

12.4 - 13.1 mi

Top 71%
×2story building
+19ft-37ft

Overall

18839

Females

6996

F45-49

6996

Half→25K

13.1 - 15.5 mi

Top 80%
×4story building
+66ft-88ft

Overall

21360

Females

8473

F45-49

8473

25K→30K

15.5 - 18.6 mi

Top 81%
×9story building
+181ft-148ft

Overall

21671

Females

8721

F45-49

8721

30K→20M

18.6 - 20.0 mi

Top 82%
×5story building
+64ft-50ft

Overall

21725

Females

8825

F45-49

8825

20M→21M

20.0 - 21.0 mi

Top 84%
×8story building
+106ft-24ft

Overall

22239

Females

9132

F45-49

9132

21M→35K

21.0 - 21.8 mi

Top 73%
×7story building
+17ft-86ft

Overall

19306

Females

7547

F45-49

7547

35K→23M

21.8 - 23.0 mi

Top 77%
×5story building
+23ft-63ft

Overall

20611

Females

8296

F45-49

8296

23M→24M

23.0 - 24.0 mi

Top 69%
×6story building
+12ft-82ft

Overall

18354

Females

7087

F45-49

7087

24M→40K

24.0 - 24.9 mi

Top 73%
×1story
+6ft-20ft

Overall

19475

Females

7756

F45-49

7756

40K→25.2M

24.9 - 25.2 mi

Top 82%
×1story
+13ft-16ft

Overall

21861

Females

9045

F45-49

9045

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2story building
+22ft-21ft

Overall

19670

Females

7816

F45-49

7816

Passing Analysis

Category:
Athletes Passed
608
Passed By
5517
Net Change
-4909
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14493
5K → 10K169487-318#14493#14811
10K → 15K64511-447#14811#15258
15K → 20K57616-559#15258#15817
20K → Half6157-151#15817#15968
Half → 25K121245-1233#15968#17201
25K → 30K181243-1225#17201#18426
30K → 20M20427-407#18426#18833
20M → 21M13349-336#18833#19169
21M → 35K3552-17#19169#19186
35K → 23M46162-116#19186#19302
23M → 24M7846+32#19302#19270
24M → 40K4755-8#19270#19278
40K → 25.2M396-93#19278#19371
25.2M → Finish4071-31#19371#19402
TOTALS6085517-4909
📊

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