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BOSTON MARATHON 2025

Erica Delgado

Bib: 21888•F

OR

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 44%
Division (F45-49)
#0 / 1813
Race Day Weather
50°/40°F
broken clouds

⏱️ 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
8:00/mi
24:50
↑ 97↓ 3451.5%
10K· 6.21 mi
8:02/mi
49:47
↑ 79↓ 1380.4%
15K· 9.32 mi
8:06/mi
1:14:57
↑ 67↓ 78
20K· 12.43 mi
8:17/mi
1:40:42
↑ 106↓ 860.1%
Half· 13.11 mi
8:10/mi
1:46:16
↑ 19↓ 370.5%
25K· 15.53 mi
8:35/mi
2:07:04
↑ 66↓ 880.2%
30K· 18.64 mi
9:01/mi
2:35:06
↑ 181↓ 1480.2%
20M
9:22/mi
2:47:50
↑ 64↓ 500.2%
21M
10:14/mi
2:58:04
↑ 106↓ 241.6%
35K· 21.75 mi
9:01/mi
3:04:49
↑ 17↓ 861.7%
23M
9:40/mi
3:16:55
↑ 23↓ 630.6%
24M
9:31/mi
3:26:26
↓ 821.3%
40K· 24.85 mi
9:49/mi
3:34:50
↓ 200.3%
25.2M
10:47/mi
3:38:33
↑ 13↓ 160.2%
Finish· 26.22 mi
9:43/mi
3:48:27
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:16
Pace8:06 /mi
2nd Half
Distance13.11 mi
Time2:02:11
Pace9:19 /mi
📊Positive Split: 15.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:3124:508:0024:50
8:00
-
10K
6.21 mi11:44:2849:478:0124:57
8:02
+0:02
15K
9.32 mi12:09:381:14:578:0225:10
8:06
+0:04
20K
12.43 mi12:35:231:40:428:0625:45
8:17
+0:11
Half
13.11 mi12:40:571:46:168:065:34
8:10
-0:07
25K
15.53 mi13:01:452:07:048:1120:48
8:35
+0:25
30K
18.64 mi13:29:472:35:068:1928:02
9:01
+0:26
20M
20.00 mi13:42:312:47:508:2312:44
9:22
+0:21
21M
21.00 mi13:52:452:58:048:2910:14
10:14
+0:52
35K
21.75 mi13:59:303:04:498:306:45
9:01
-1:13
23M
23.00 mi14:11:363:16:558:3412:06
9:40
+0:39
24M
24.00 mi14:21:073:26:268:369:31
9:31
-0:09
40K
24.85 mi14:29:313:34:508:398:24
9:49
+0:18
25.2M
25.20 mi14:33:143:38:338:403:43
10:47
+0:58
Finish
26.22 mi14:43:083:48:278:439:54
9:43
-1:04

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

8:00 /mi

Average Pace

8:43 /mi

Slowest Pace

10:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:07:04

56% of race

Time at Steady Pace

47:31

21% of race

Time at Slower Pace

53:52

24% of race

Average Pace: 8:43 /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 mi11:19:3124:508:0024:50
8:00
#16549
10K
6.21 mi11:44:2849:478:0124:57
8:02
#16623
15K
9.32 mi12:09:381:14:578:0225:10
8:06
#16651
20K
12.43 mi12:35:231:40:428:0625:45
8:17
#16710
Half
13.11 mi12:40:571:46:168:065:34
8:10
#16717
25K
15.53 mi13:01:452:07:048:1120:48
8:35
#16837
30K
18.64 mi13:29:472:35:068:1928:02
9:01
#16964
20M
20.00 mi13:42:312:47:508:2312:44
9:22
#17083
21M
21.00 mi13:52:452:58:048:2910:14
10:14
#17229
35K
21.75 mi13:59:303:04:498:306:45
9:01
#17270
23M
23.00 mi14:11:363:16:558:3412:06
9:40
#17422
24M
24.00 mi14:21:073:26:268:369:31
9:31
#17549
40K
24.85 mi14:29:313:34:508:398:24
9:49
#17663
25.2M
25.20 mi14:33:143:38:338:403:43
10:47
#17705
Finish
26.22 mi14:43:083:48:278:439:54
9:43
#17951
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi165495485548516754(Top 59%)5589(Top 46%)5589(Top 308%)
10K6.21 mi3.10 mi16623-745511-265511-2616721(Top 59%)5554(Top 45%)5554(Top 306%)
15K9.32 mi3.11 mi16651-285513-25513-216754(Top 59%)5589(Top 46%)5589(Top 308%)
20K12.43 mi3.11 mi16710-595562-495562-4916879(Top 59%)5711(Top 47%)5711(Top 315%)
Half13.11 mi0.68 mi16717-75571-95571-917095(Top 60%)5833(Top 48%)5833(Top 322%)
25K15.53 mi2.42 mi16837-1205667-965667-9617694(Top 62%)6250(Top 51%)6250(Top 345%)
30K18.64 mi3.11 mi16964-1275794-1275794-12717811(Top 63%)6478(Top 53%)6478(Top 357%)
20M20.00 mi1.36 mi17083-1195900-1065900-10618626(Top 66%)7065(Top 58%)7065(Top 390%)
21M21.00 mi1.00 mi17229-1466009-1096009-10919144(Top 67%)7400(Top 61%)7400(Top 408%)
35K21.75 mi0.75 mi17270-416060-516060-5118359(Top 65%)7102(Top 58%)7102(Top 392%)
23M23.00 mi1.25 mi17422-1526183-1236183-12319330(Top 68%)7689(Top 63%)7689(Top 424%)
24M24.00 mi1.00 mi17549-1276279-966279-9619676(Top 69%)7915(Top 65%)7915(Top 437%)
40K24.85 mi0.85 mi17663-1146369-906369-9019896(Top 70%)8092(Top 66%)8092(Top 446%)
25.2M25.20 mi0.35 mi17705-426401-326401-3219978(Top 70%)8139(Top 67%)8139(Top 449%)
Finish26.22 mi1.02 mi17951-2466543-1426543-14221978(Top 77%)9140(Top 75%)9140(Top 504%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21story building
+97ft-345ft

Overall

16754

Females

5589

F45-49

5589

5K→10K

3.1 - 6.2 mi

Top 59%
×5story building
+79ft-138ft

Overall

16721

Females

5554

F45-49

5554

10K→15K

6.2 - 9.3 mi

Top 59%
×3story building
+67ft-78ft

Overall

16754

Females

5589

F45-49

5589

15K→20K

9.3 - 12.4 mi

Top 59%
×5story building
+106ft-86ft

Overall

16879

Females

5711

F45-49

5711

20K→Half

12.4 - 13.1 mi

Top 60%
×2story building
+19ft-37ft

Overall

17095

Females

5833

F45-49

5833

Half→25K

13.1 - 15.5 mi

Top 62%
×4story building
+66ft-88ft

Overall

17694

Females

6250

F45-49

6250

25K→30K

15.5 - 18.6 mi

Top 63%
×9story building
+181ft-148ft

Overall

17811

Females

6478

F45-49

6478

30K→20M

18.6 - 20.0 mi

Top 66%
×5story building
+64ft-50ft

Overall

18626

Females

7065

F45-49

7065

20M→21M

20.0 - 21.0 mi

Top 67%
×8story building
+106ft-24ft

Overall

19144

Females

7400

F45-49

7400

21M→35K

21.0 - 21.8 mi

Top 65%
×7story building
+17ft-86ft

Overall

18359

Females

7102

F45-49

7102

35K→23M

21.8 - 23.0 mi

Top 68%
×5story building
+23ft-63ft

Overall

19330

Females

7689

F45-49

7689

23M→24M

23.0 - 24.0 mi

Top 69%
×6story building
+12ft-82ft

Overall

19676

Females

7915

F45-49

7915

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

19896

Females

8092

F45-49

8092

40K→25.2M

24.9 - 25.2 mi

Top 70%
×1story
+13ft-16ft

Overall

19978

Females

8139

F45-49

8139

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×2story building
+22ft-21ft

Overall

21978

Females

9140

F45-49

9140

Passing Analysis

Category:
Athletes Passed
1372
Passed By
2774
Net Change
-1402
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16549
5K → 10K273347-74#16549#16623
10K → 15K204232-28#16623#16651
15K → 20K181240-59#16651#16710
20K → Half3441-7#16710#16717
Half → 25K116236-120#16717#16837
25K → 30K182309-127#16837#16964
30K → 20M58177-119#16964#17083
20M → 21M79225-146#17083#17229
21M → 35K59100-41#17229#17270
35K → 23M73225-152#17270#17422
23M → 24M44171-127#17422#17549
24M → 40K34148-114#17549#17663
40K → 25.2M1860-42#17663#17705
25.2M → Finish17263-246#17705#17951
TOTALS13722774-1402
📊

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