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BOSTON MARATHON 2023

Natalia Rivas-Lopez

Bib: 30213•F

TN

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 37%
Division (F18-39)
#0 / 4884
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
8:29/mi
26:21
↑ 97↓ 3451.5%
10K· 6.21 mi
8:12/mi
51:51
↑ 79↓ 1380.4%
15K· 9.32 mi
8:12/mi
1:17:20
↑ 67↓ 78
20K· 12.43 mi
8:11/mi
1:42:45
↑ 106↓ 860.1%
Half· 13.11 mi
7:58/mi
1:48:11
↑ 19↓ 370.5%
25K· 15.53 mi
8:09/mi
2:07:57
↑ 66↓ 880.2%
30K· 18.64 mi
8:19/mi
2:33:48
↑ 181↓ 1480.2%
20M
8:20/mi
2:45:07
↑ 64↓ 500.2%
21M
8:51/mi
2:53:58
↑ 106↓ 241.6%
35K· 21.75 mi
7:56/mi
2:59:54
↑ 17↓ 861.7%
23M
8:12/mi
3:10:10
↑ 23↓ 630.6%
24M
7:51/mi
3:18:01
↓ 821.3%
40K· 24.85 mi
8:08/mi
3:24:58
↓ 200.3%
25.2M
8:48/mi
3:28:00
↑ 13↓ 160.2%
Finish· 26.22 mi
7:59/mi
3:36:08
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:48:11
Pace8:15 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:47:57
Pace8:14 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:5126:218:2926:21
8:29
-
10K
6.21 mi12:10:2151:518:2125:30
8:12
-0:17
15K
9.32 mi12:35:501:17:208:1825:29
8:12
0:00
20K
12.43 mi13:01:151:42:458:1625:25
8:11
-0:01
Half
13.11 mi13:06:411:48:118:155:26
7:58
-0:13
25K
15.53 mi13:26:272:07:578:1419:46
8:09
+0:11
30K
18.64 mi13:52:182:33:488:1525:51
8:19
+0:10
20M
20.00 mi14:03:372:45:078:1511:19
8:20
+0:01
21M
21.00 mi14:12:282:53:588:178:51
8:51
+0:31
35K
21.75 mi14:18:242:59:548:165:56
7:56
-0:55
23M
23.00 mi14:28:403:10:108:1610:16
8:12
+0:16
24M
24.00 mi14:36:313:18:018:157:51
7:51
-0:21
40K
24.85 mi14:43:283:24:588:156:57
8:08
+0:17
25.2M
25.20 mi14:46:303:28:008:153:02
8:48
+0:40
Finish
26.22 mi14:54:383:36:088:158:08
7:59
-0:49

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

7:51 /mi

Average Pace

8:15 /mi

Slowest Pace

8:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:24:15

95% of race

Time at Steady Pace

11:53

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:15 /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 mi11:44:5126:218:2926:21
8:29
#17431
10K
6.21 mi12:10:2151:518:2125:30
8:12
#16811
15K
9.32 mi12:35:501:17:208:1825:29
8:12
#16487
20K
12.43 mi13:01:151:42:458:1625:25
8:11
#16039
Half
13.11 mi13:06:411:48:118:155:26
7:58
#15929
25K
15.53 mi13:26:272:07:578:1419:46
8:09
#15595
30K
18.64 mi13:52:182:33:488:1525:51
8:19
#15131
20M
20.00 mi14:03:372:45:078:1511:19
8:20
#14935
21M
21.00 mi14:12:282:53:588:178:51
8:51
#14784
35K
21.75 mi14:18:242:59:548:165:56
7:56
#14656
23M
23.00 mi14:28:403:10:108:1610:16
8:12
#14462
24M
24.00 mi14:36:313:18:018:157:51
7:51
#14254
40K
24.85 mi14:43:283:24:588:156:57
8:08
#14107
25.2M
25.20 mi14:46:303:28:008:153:02
8:48
#14050
Finish
26.22 mi14:54:383:36:088:158:08
7:59
#13950
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi174316205620515880(Top 60%)5214(Top 46%)5214(Top 107%)
10K6.21 mi3.10 mi16811+6205783+4225783+42216313(Top 61%)5459(Top 48%)5459(Top 112%)
15K9.32 mi3.11 mi16487+3245582+2015582+20115880(Top 60%)5214(Top 46%)5214(Top 107%)
20K12.43 mi3.11 mi16039+4485328+2545328+25414842(Top 56%)4610(Top 40%)4610(Top 94%)
Half13.11 mi0.68 mi15929+1105262+665262+6614134(Top 53%)4165(Top 36%)4165(Top 85%)
25K15.53 mi2.42 mi15595+3345090+1725090+17213905(Top 52%)4161(Top 36%)4161(Top 85%)
30K18.64 mi3.11 mi15131+4644844+2464844+24613160(Top 49%)3848(Top 34%)3848(Top 79%)
20M20.00 mi1.36 mi14935+1964728+1164728+11612574(Top 47%)3631(Top 32%)3631(Top 74%)
21M21.00 mi1.00 mi14784+1514656+724656+7212575(Top 47%)3729(Top 33%)3729(Top 76%)
35K21.75 mi0.75 mi14656+1284600+564600+5611686(Top 44%)3265(Top 29%)3265(Top 67%)
23M23.00 mi1.25 mi14462+1944510+904510+9011217(Top 42%)3129(Top 27%)3129(Top 64%)
24M24.00 mi1.00 mi14254+2084403+1074403+10710208(Top 38%)2701(Top 24%)2701(Top 55%)
40K24.85 mi0.85 mi14107+1474334+694334+6910942(Top 41%)3128(Top 27%)3128(Top 64%)
25.2M25.20 mi0.35 mi14050+574309+254309+2511419(Top 43%)3431(Top 30%)3431(Top 70%)
Finish26.22 mi1.02 mi13950+1004265+444265+4412031(Top 45%)3729(Top 33%)3729(Top 76%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21story building
+97ft-345ft

Overall

15880

Females

5214

F18-39

5214

5K→10K

3.1 - 6.2 mi

Top 61%
×5story building
+79ft-138ft

Overall

16313

Females

5459

F18-39

5459

10K→15K

6.2 - 9.3 mi

Top 60%
×3story building
+67ft-78ft

Overall

15880

Females

5214

F18-39

5214

15K→20K

9.3 - 12.4 mi

Top 56%
×5story building
+106ft-86ft

Overall

14842

Females

4610

F18-39

4610

20K→Half

12.4 - 13.1 mi

Top 53%
×2story building
+19ft-37ft

Overall

14134

Females

4165

F18-39

4165

Half→25K

13.1 - 15.5 mi

Top 52%
×4story building
+66ft-88ft

Overall

13905

Females

4161

F18-39

4161

25K→30K

15.5 - 18.6 mi

Top 49%
×9story building
+181ft-148ft

Overall

13160

Females

3848

F18-39

3848

30K→20M

18.6 - 20.0 mi

Top 47%
×5story building
+64ft-50ft

Overall

12574

Females

3631

F18-39

3631

20M→21M

20.0 - 21.0 mi

Top 47%
×8story building
+106ft-24ft

Overall

12575

Females

3729

F18-39

3729

21M→35K

21.0 - 21.8 mi

Top 44%
×7story building
+17ft-86ft

Overall

11686

Females

3265

F18-39

3265

35K→23M

21.8 - 23.0 mi

Top 42%
×5story building
+23ft-63ft

Overall

11217

Females

3129

F18-39

3129

23M→24M

23.0 - 24.0 mi

Top 38%
×6story building
+12ft-82ft

Overall

10208

Females

2701

F18-39

2701

24M→40K

24.0 - 24.9 mi

Top 41%
×1story
+6ft-20ft

Overall

10942

Females

3128

F18-39

3128

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

11419

Females

3431

F18-39

3431

25.2M→Finish

25.2 - 26.2 mi

Top 45%
×2story building
+22ft-21ft

Overall

12031

Females

3729

F18-39

3729

Passing Analysis

Category:
Athletes Passed
3811
Passed By
330
Net Change
+3481
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17431
5K → 10K735115+620#17431#16811
10K → 15K40783+324#16811#16487
15K → 20K46719+448#16487#16039
20K → Half1133+110#16039#15929
Half → 25K34814+334#15929#15595
25K → 30K47511+464#15595#15131
30K → 20M20610+196#15131#14935
20M → 21M16615+151#14935#14784
21M → 35K1368+128#14784#14656
35K → 23M1995+194#14656#14462
23M → 24M2124+208#14462#14254
24M → 40K1569+147#14254#14107
40K → 25.2M6710+57#14107#14050
25.2M → Finish12424+100#14050#13950
TOTALS3811330+3481
📊

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