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BOSTON MARATHON 2023

Fernanda Loureiro

Bib: 19844•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 36%
Masters (Masters Women)
#0 / 6539
Top 22%
Division (F40-44)
#0 / 1878
Top 41%
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
7:57/mi
24:41
↑ 97↓ 3451.5%
10K· 6.21 mi
7:47/mi
48:52
↑ 79↓ 1380.4%
15K· 9.32 mi
7:50/mi
1:13:11
↑ 67↓ 78
20K· 12.43 mi
7:52/mi
1:37:37
↑ 106↓ 860.1%
Half· 13.11 mi
7:43/mi
1:42:53
↑ 19↓ 370.5%
25K· 15.53 mi
8:00/mi
2:02:17
↑ 66↓ 880.2%
30K· 18.64 mi
8:30/mi
2:28:43
↑ 181↓ 1480.2%
20M
8:45/mi
2:40:37
↑ 64↓ 500.2%
21M
8:45/mi
2:49:22
↑ 106↓ 241.6%
35K· 21.75 mi
8:24/mi
2:55:39
↑ 17↓ 861.7%
23M
8:38/mi
3:06:27
↑ 23↓ 630.6%
24M
8:42/mi
3:15:09
↓ 821.3%
40K· 24.85 mi
8:59/mi
3:22:50
↓ 200.3%
25.2M
9:52/mi
3:26:14
↑ 13↓ 160.2%
Finish· 26.22 mi
8:34/mi
3:34:58
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:53
Pace7:51 /mi
2nd Half
Distance13.11 mi
Time1:52:05
Pace8:33 /mi
📊Positive Split: 8.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:0624:417:5724:41
7:57
-
10K
6.21 mi11:41:1748:527:5224:11
7:47
-0:10
15K
9.32 mi12:05:361:13:117:5124:19
7:50
+0:03
20K
12.43 mi12:30:021:37:377:5124:26
7:52
+0:02
Half
13.11 mi12:35:181:42:537:515:16
7:43
-0:09
25K
15.53 mi12:54:422:02:177:5219:24
8:00
+0:17
30K
18.64 mi13:21:082:28:437:5926:26
8:30
+0:30
20M
20.00 mi13:33:022:40:378:0211:54
8:45
+0:15
21M
21.00 mi13:41:472:49:228:048:45
8:45
0:00
35K
21.75 mi13:48:042:55:398:056:17
8:24
-0:21
23M
23.00 mi13:58:523:06:278:0610:48
8:38
+0:14
24M
24.00 mi14:07:343:15:098:088:42
8:42
+0:04
40K
24.85 mi14:15:153:22:508:107:41
8:59
+0:17
25.2M
25.20 mi14:18:393:26:148:113:24
9:52
+0:53
Finish
26.22 mi14:27:233:34:588:128:44
8:34
-1:18

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

7:43 /mi

Average Pace

8:12 /mi

Slowest Pace

9:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:02:17

57% of race

Time at Steady Pace

1:21:36

38% of race

Time at Slower Pace

11:05

5% of race

Average Pace: 8:12 /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 mi11:17:0624:417:5724:41
7:57
#13625
10K
6.21 mi11:41:1748:527:5224:11
7:47
#13306
15K
9.32 mi12:05:361:13:117:5124:19
7:50
#13159
20K
12.43 mi12:30:021:37:377:5124:26
7:52
#12908
Half
13.11 mi12:35:181:42:537:515:16
7:43
#12839
25K
15.53 mi12:54:422:02:177:5219:24
8:00
#12804
30K
18.64 mi13:21:082:28:437:5926:26
8:30
#13126
20M
20.00 mi13:33:022:40:378:0211:54
8:45
#13283
21M
21.00 mi13:41:472:49:228:048:45
8:45
#13163
35K
21.75 mi13:48:042:55:398:056:17
8:24
#13227
23M
23.00 mi13:58:523:06:278:0610:48
8:38
#13254
24M
24.00 mi14:07:343:15:098:088:42
8:42
#13349
40K
24.85 mi14:15:153:22:508:107:41
8:59
#13459
25.2M
25.20 mi14:18:393:26:148:113:24
9:52
#13529
Finish
26.22 mi14:27:233:34:588:128:44
8:34
#13622
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi136253799379912958(Top 49%)3452(Top 30%)3452(Top 184%)
10K6.21 mi3.10 mi13306+3193632+1673632+16712999(Top 49%)3428(Top 30%)3428(Top 183%)
15K9.32 mi3.11 mi13159+1473560+723560+7212958(Top 49%)3452(Top 30%)3452(Top 184%)
20K12.43 mi3.11 mi12908+2513430+1303430+13012308(Top 46%)3145(Top 28%)3145(Top 167%)
Half13.11 mi0.68 mi12839+693386+443386+4412137(Top 46%)3015(Top 26%)3015(Top 161%)
25K15.53 mi2.42 mi12804+353400-143400-1412781(Top 48%)3515(Top 31%)3515(Top 187%)
30K18.64 mi3.11 mi13126-3223627-2273627-22714371(Top 54%)4547(Top 40%)4547(Top 242%)
20M20.00 mi1.36 mi13283-1573726-993726-9915163(Top 57%)5101(Top 45%)5101(Top 272%)
21M21.00 mi1.00 mi13163+1203673+533673+5312024(Top 45%)3425(Top 30%)3425(Top 182%)
35K21.75 mi0.75 mi13227-643728-553728-5514730(Top 55%)4944(Top 43%)4944(Top 263%)
23M23.00 mi1.25 mi13254-273769-413769-4113953(Top 52%)4586(Top 40%)4586(Top 244%)
24M24.00 mi1.00 mi13349-953849-803849-8015665(Top 59%)5614(Top 49%)5614(Top 299%)
40K24.85 mi0.85 mi13459-1103934-853934-8516069(Top 60%)5889(Top 52%)5889(Top 314%)
25.2M25.20 mi0.35 mi13529-703987-533987-5316815(Top 63%)6306(Top 55%)6306(Top 336%)
Finish26.22 mi1.02 mi13622-934062-754062-7515827(Top 59%)5706(Top 50%)5706(Top 304%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21story building
+97ft-345ft

Overall

12958

Females

3452

F40-44

3452

5K→10K

3.1 - 6.2 mi

Top 49%
×5story building
+79ft-138ft

Overall

12999

Females

3428

F40-44

3428

10K→15K

6.2 - 9.3 mi

Top 49%
×3story building
+67ft-78ft

Overall

12958

Females

3452

F40-44

3452

15K→20K

9.3 - 12.4 mi

Top 46%
×5story building
+106ft-86ft

Overall

12308

Females

3145

F40-44

3145

20K→Half

12.4 - 13.1 mi

Top 46%
×2story building
+19ft-37ft

Overall

12137

Females

3015

F40-44

3015

Half→25K

13.1 - 15.5 mi

Top 48%
×4story building
+66ft-88ft

Overall

12781

Females

3515

F40-44

3515

25K→30K

15.5 - 18.6 mi

Top 54%
×9story building
+181ft-148ft

Overall

14371

Females

4547

F40-44

4547

30K→20M

18.6 - 20.0 mi

Top 57%
×5story building
+64ft-50ft

Overall

15163

Females

5101

F40-44

5101

20M→21M

20.0 - 21.0 mi

Top 45%
×8story building
+106ft-24ft

Overall

12024

Females

3425

F40-44

3425

21M→35K

21.0 - 21.8 mi

Top 55%
×7story building
+17ft-86ft

Overall

14730

Females

4944

F40-44

4944

35K→23M

21.8 - 23.0 mi

Top 52%
×5story building
+23ft-63ft

Overall

13953

Females

4586

F40-44

4586

23M→24M

23.0 - 24.0 mi

Top 59%
×6story building
+12ft-82ft

Overall

15665

Females

5614

F40-44

5614

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

16069

Females

5889

F40-44

5889

40K→25.2M

24.9 - 25.2 mi

Top 63%
×1story
+13ft-16ft

Overall

16815

Females

6306

F40-44

6306

25.2M→Finish

25.2 - 26.2 mi

Top 59%
×2story building
+22ft-21ft

Overall

15827

Females

5706

F40-44

5706

Passing Analysis

Category:
Athletes Passed
1890
Passed By
1887
Net Change
+3
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13625
5K → 10K485166+319#13625#13306
10K → 15K284137+147#13306#13159
15K → 20K32675+251#13159#12908
20K → Half8011+69#12908#12839
Half → 25K152117+35#12839#12804
25K → 30K105427-322#12804#13126
30K → 20M51208-157#13126#13283
20M → 21M15030+120#13283#13163
21M → 35K3599-64#13163#13227
35K → 23M87114-27#13227#13254
23M → 24M42137-95#13254#13349
24M → 40K30140-110#13349#13459
40K → 25.2M1585-70#13459#13529
25.2M → Finish48141-93#13529#13622
TOTALS18901887+3
📊

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