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BOSTON MARATHON 2023

Natalia Andrea Mansilla

Bib: 14881•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 32%
Gender (Female)
#0 / 11423
Top 13%
Masters (Masters Women)
#0 / 6539
Top 5%
Division (F45-49)
#0 / 1817
Top 5%
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
7:40/mi
23:50
↑ 97↓ 3451.5%
10K· 6.21 mi
7:26/mi
46:57
↑ 79↓ 1380.4%
15K· 9.32 mi
7:25/mi
1:10:00
↑ 67↓ 78
20K· 12.43 mi
7:30/mi
1:33:18
↑ 106↓ 860.1%
Half· 13.11 mi
7:29/mi
1:38:24
↑ 19↓ 370.5%
25K· 15.53 mi
7:33/mi
1:56:42
↑ 66↓ 880.2%
30K· 18.64 mi
7:42/mi
2:20:37
↑ 181↓ 1480.2%
20M
7:39/mi
2:31:01
↑ 64↓ 500.2%
21M
8:06/mi
2:39:07
↑ 106↓ 241.6%
35K· 21.75 mi
7:36/mi
2:44:48
↑ 17↓ 861.7%
23M
7:34/mi
2:54:17
↑ 23↓ 630.6%
24M
7:16/mi
3:01:33
↓ 821.3%
40K· 24.85 mi
7:29/mi
3:07:57
↓ 200.3%
25.2M
7:58/mi
3:10:42
↑ 13↓ 160.2%
Finish· 26.22 mi
7:20/mi
3:18:10
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:24
Pace7:30 /mi
2nd Half
Distance13.11 mi
Time1:39:46
Pace7:37 /mi
📊Positive Split: 1.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:2823:507:4023:50
7:40
-
10K
6.21 mi11:15:3546:577:3323:07
7:26
-0:14
15K
9.32 mi11:38:381:10:007:3123:03
7:25
-0:01
20K
12.43 mi12:01:561:33:187:3023:18
7:30
+0:05
Half
13.11 mi12:07:021:38:247:305:06
7:29
-0:01
25K
15.53 mi12:25:201:56:427:3118:18
7:33
+0:04
30K
18.64 mi12:49:152:20:377:3323:55
7:42
+0:09
20M
20.00 mi12:59:392:31:017:3310:24
7:39
-0:03
21M
21.00 mi13:07:452:39:077:358:06
8:06
+0:27
35K
21.75 mi13:13:262:44:487:355:41
7:36
-0:30
23M
23.00 mi13:22:552:54:177:359:29
7:34
-0:02
24M
24.00 mi13:30:113:01:337:347:16
7:16
-0:18
40K
24.85 mi13:36:353:07:577:346:24
7:29
+0:13
25.2M
25.20 mi13:39:203:10:427:342:45
7:58
+0:29
Finish
26.22 mi13:46:483:18:107:347:28
7:20
-0:38

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

7:16 /mi

Average Pace

7:34 /mi

Slowest Pace

8:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:10:04

96% of race

Time at Steady Pace

8:06

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:33 /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 mi10:52:2823:507:4023:50
7:40
#11201
10K
6.21 mi11:15:3546:577:3323:07
7:26
#10526
15K
9.32 mi11:38:381:10:007:3123:03
7:25
#10159
20K
12.43 mi12:01:561:33:187:3023:18
7:30
#9894
Half
13.11 mi12:07:021:38:247:305:06
7:29
#9900
25K
15.53 mi12:25:201:56:427:3118:18
7:33
#9759
30K
18.64 mi12:49:152:20:377:3323:55
7:42
#9529
20M
20.00 mi12:59:392:31:017:3310:24
7:39
#9370
21M
21.00 mi13:07:452:39:077:358:06
8:06
#9240
35K
21.75 mi13:13:262:44:487:355:41
7:36
#9222
23M
23.00 mi13:22:552:54:177:359:29
7:34
#9058
24M
24.00 mi13:30:113:01:337:347:16
7:16
#8894
40K
24.85 mi13:36:353:07:577:346:24
7:29
#8799
25.2M
25.20 mi13:39:203:10:427:342:45
7:58
#8727
Finish
26.22 mi13:46:483:18:107:347:28
7:20
#8649
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi11201243224329518(Top 36%)1624(Top 14%)1624(Top 89%)
10K6.21 mi3.10 mi10526+6752084+3482084+3489988(Top 38%)1809(Top 16%)1809(Top 100%)
15K9.32 mi3.11 mi10159+3671889+1951889+1959518(Top 36%)1624(Top 14%)1624(Top 89%)
20K12.43 mi3.11 mi9894+2651793+961793+969312(Top 35%)1604(Top 14%)1604(Top 88%)
Half13.11 mi0.68 mi9900-61790+31790+310056(Top 38%)1892(Top 17%)1892(Top 104%)
25K15.53 mi2.42 mi9759+1411743+471743+479146(Top 34%)1611(Top 14%)1611(Top 89%)
30K18.64 mi3.11 mi9529+2301695+481695+488636(Top 32%)1568(Top 14%)1568(Top 86%)
20M20.00 mi1.36 mi9370+1591661+341661+347864(Top 30%)1352(Top 12%)1352(Top 74%)
21M21.00 mi1.00 mi9240+1301629+321629+328031(Top 30%)1529(Top 13%)1529(Top 84%)
35K21.75 mi0.75 mi9222+181640-111640-119273(Top 35%)2026(Top 18%)2026(Top 112%)
23M23.00 mi1.25 mi9058+1641592+481592+486945(Top 26%)1157(Top 10%)1157(Top 64%)
24M24.00 mi1.00 mi8894+1641557+351557+356196(Top 23%)988(Top 9%)988(Top 54%)
40K24.85 mi0.85 mi8799+951537+201537+206674(Top 25%)1240(Top 11%)1240(Top 68%)
25.2M25.20 mi0.35 mi8727+721517+201517+206435(Top 24%)1219(Top 11%)1219(Top 67%)
Finish26.22 mi1.02 mi8649+781505+121505+127332(Top 28%)1556(Top 14%)1556(Top 86%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21story building
+97ft-345ft

Overall

9518

Females

1624

F45-49

1624

5K→10K

3.1 - 6.2 mi

Top 38%
×5story building
+79ft-138ft

Overall

9988

Females

1809

F45-49

1809

10K→15K

6.2 - 9.3 mi

Top 36%
×3story building
+67ft-78ft

Overall

9518

Females

1624

F45-49

1624

15K→20K

9.3 - 12.4 mi

Top 35%
×5story building
+106ft-86ft

Overall

9312

Females

1604

F45-49

1604

20K→Half

12.4 - 13.1 mi

Top 38%
×2story building
+19ft-37ft

Overall

10056

Females

1892

F45-49

1892

Half→25K

13.1 - 15.5 mi

Top 34%
×4story building
+66ft-88ft

Overall

9146

Females

1611

F45-49

1611

25K→30K

15.5 - 18.6 mi

Top 32%
×9story building
+181ft-148ft

Overall

8636

Females

1568

F45-49

1568

30K→20M

18.6 - 20.0 mi

Top 30%
×5story building
+64ft-50ft

Overall

7864

Females

1352

F45-49

1352

20M→21M

20.0 - 21.0 mi

Top 30%
×8story building
+106ft-24ft

Overall

8031

Females

1529

F45-49

1529

21M→35K

21.0 - 21.8 mi

Top 35%
×7story building
+17ft-86ft

Overall

9273

Females

2026

F45-49

2026

35K→23M

21.8 - 23.0 mi

Top 26%
×5story building
+23ft-63ft

Overall

6945

Females

1157

F45-49

1157

23M→24M

23.0 - 24.0 mi

Top 23%
×6story building
+12ft-82ft

Overall

6196

Females

988

F45-49

988

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

6674

Females

1240

F45-49

1240

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6435

Females

1219

F45-49

1219

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2story building
+22ft-21ft

Overall

7332

Females

1556

F45-49

1556

Passing Analysis

Category:
Athletes Passed
3025*
Passed By
473
Net Change
+2552
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11201
5K → 10K749*74+675#11201#10526
10K → 15K42861+367#10526#10159
15K → 20K319*54+265#10159#9894
20K → Half3137-6#9894#9900
Half → 25K18342+141#9900#9759
25K → 30K293*63+230#9759#9529
30K → 20M17314+159#9529#9370
20M → 21M15828+130#9370#9240
21M → 35K5133+18#9240#9222
35K → 23M17612+164#9222#9058
23M → 24M17612+164#9058#8894
24M → 40K10914+95#8894#8799
40K → 25.2M764+72#8799#8727
25.2M → Finish10325+78#8727#8649
TOTALS3025*473+2552

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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