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BOSTON MARATHON 2025

Teodora Delcheva

Bib: 8942•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 16%
Gender (Female)
#0 / 12228
Top 3%
Division (F18-39)
#0 / 5469
Top 6%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:15
Rank: #3982
Start → 5K
20:15 | 6:31/mi
10K· 6.21 mi
40:37
Rank: #4046 (-64)
5K → 10K
20:22 | 6:33/mi
15K· 9.32 mi
1:01:12
Rank: #4150 (-104)
10K → 15K
20:35 | 6:38/mi
20K· 12.43 mi
1:22:05
Rank: #4217 (-67)
15K → 20K
20:53 | 6:43/mi
Half· 13.11 mi
1:26:40
Rank: #4262 (-45)
20K → Half
4:35 | 6:43/mi
25K· 15.53 mi
1:43:10
Rank: #4303 (-41)
Half → 25K
16:30 | 6:48/mi
30K· 18.64 mi
2:05:10
Rank: #4434 (-131)
25K → 30K
22:00 | 7:05/mi
20M
2:14:53
Rank: #4465 (-31)
30K → 20M
9:43 | 7:09/mi
21M
2:22:32
Rank: #4511 (-46)
20M → 21M
7:39 | 7:39/mi
35K· 21.75 mi
2:27:43
Rank: #4501 (+10)
21M → 35K
5:11 | 6:56/mi
23M
2:36:48
Rank: #4519 (-18)
35K → 23M
9:05 | 7:15/mi
24M
2:43:48
Rank: #4517 (+2)
23M → 24M
7:00 | 7:00/mi
40K· 24.85 mi
2:49:53
Rank: #4504 (+13)
24M → 40K
6:05 | 7:07/mi
25.2M
2:52:35
Rank: #4522 (-18)
40K → 25.2M
2:42 | 7:50/mi
Finish· 26.22 mi
2:59:33
Rank: #4544 (-22)
25.2M → Finish
6:58 | 6:50/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:40
Pace6:37 /mi
2nd Half
Distance13.11 mi
Time1:32:53
Pace7:05 /mi
📊Positive Split: 7.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:45:2620:156:3120:15
6:31
-
10K
6.21 mi11:05:4840:376:3220:22
6:33
+0:02
15K
9.32 mi11:26:231:01:126:3420:35
6:38
+0:05
20K
12.43 mi11:47:161:22:056:3620:53
6:43
+0:05
Half
13.11 mi11:51:511:26:406:374:35
6:43
0:00
25K
15.53 mi12:08:211:43:106:3816:30
6:48
+0:05
30K
18.64 mi12:30:212:05:106:4322:00
7:05
+0:17
20M
20.00 mi12:40:042:14:536:459:43
7:09
+0:04
21M
21.00 mi12:47:432:22:326:477:39
7:39
+0:30
35K
21.75 mi12:52:542:27:436:485:11
6:56
-0:43
23M
23.00 mi13:01:592:36:486:499:05
7:15
+0:19
24M
24.00 mi13:08:592:43:486:507:00
7:00
-0:15
40K
24.85 mi13:15:042:49:536:506:05
7:07
+0:07
25.2M
25.20 mi13:17:462:52:356:512:42
7:50
+0:43
Finish
26.22 mi13:24:442:59:336:516:58
6:50
-1:00

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

6:31 /mi

Average Pace

6:51 /mi

Slowest Pace

7:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:26:40

48% of race

Time at Steady Pace

1:03:44

35% of race

Time at Slower Pace

29:09

16% of race

Average Pace: 6:51 /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 mi10:45:2620:156:3120:15
6:31
#3982
10K
6.21 mi11:05:4840:376:3220:22
6:33
#4046
15K
9.32 mi11:26:231:01:126:3420:35
6:38
#4150
20K
12.43 mi11:47:161:22:056:3620:53
6:43
#4217
Half
13.11 mi11:51:511:26:406:374:35
6:43
#4262
25K
15.53 mi12:08:211:43:106:3816:30
6:48
#4303
30K
18.64 mi12:30:212:05:106:4322:00
7:05
#4434
20M
20.00 mi12:40:042:14:536:459:43
7:09
#4465
21M
21.00 mi12:47:432:22:326:477:39
7:39
#4511
35K
21.75 mi12:52:542:27:436:485:11
6:56
#4501
23M
23.00 mi13:01:592:36:486:499:05
7:15
#4519
24M
24.00 mi13:08:592:43:486:507:00
7:00
#4517
40K
24.85 mi13:15:042:49:536:506:05
7:07
#4504
25.2M
25.20 mi13:17:462:52:356:512:42
7:50
#4522
Finish
26.22 mi13:24:442:59:336:516:58
6:50
#4544
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi39822152154474(Top 16%)273(Top 2%)273(Top 5%)
10K6.21 mi3.10 mi4046-64221-6221-64130(Top 15%)238(Top 2%)238(Top 4%)
15K9.32 mi3.11 mi4150-104233-12233-124474(Top 16%)273(Top 2%)273(Top 5%)
20K12.43 mi3.11 mi4217-67244-11244-114641(Top 16%)324(Top 3%)324(Top 6%)
Half13.11 mi0.68 mi4262-45246-2246-25512(Top 19%)437(Top 4%)437(Top 8%)
25K15.53 mi2.42 mi4303-41258-12258-124932(Top 17%)389(Top 3%)389(Top 7%)
30K18.64 mi3.11 mi4434-131283-25283-255216(Top 18%)488(Top 4%)488(Top 9%)
20M20.00 mi1.36 mi4465-31300-17300-174949(Top 17%)488(Top 4%)488(Top 9%)
21M21.00 mi1.00 mi4511-46315-15315-155408(Top 19%)718(Top 6%)718(Top 13%)
35K21.75 mi0.75 mi4501+10320-5320-54949(Top 17%)580(Top 5%)580(Top 11%)
23M23.00 mi1.25 mi4519-18336-16336-165224(Top 18%)738(Top 6%)738(Top 13%)
24M24.00 mi1.00 mi4517+2342-6342-64659(Top 16%)620(Top 5%)620(Top 11%)
40K24.85 mi0.85 mi4504+13352-10352-104593(Top 16%)657(Top 5%)657(Top 12%)
25.2M25.20 mi0.35 mi4522-18360-8360-85079(Top 18%)877(Top 7%)877(Top 16%)
Finish26.22 mi1.02 mi4544-22366-6366-64742(Top 17%)767(Top 6%)767(Top 14%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21stories
+97ft-345ft

Overall

4474

Females

273

F18-39

273

5K→10K

3.1 - 6.2 mi

Top 15%
×5stories
+79ft-138ft

Overall

4130

Females

238

F18-39

238

10K→15K

6.2 - 9.3 mi

Top 16%
×3stories
+67ft-78ft

Overall

4474

Females

273

F18-39

273

15K→20K

9.3 - 12.4 mi

Top 16%
×5stories
+106ft-86ft

Overall

4641

Females

324

F18-39

324

20K→Half

12.4 - 13.1 mi

Top 19%
×2stories
+19ft-37ft

Overall

5512

Females

437

F18-39

437

Half→25K

13.1 - 15.5 mi

Top 17%
×4stories
+66ft-88ft

Overall

4932

Females

389

F18-39

389

25K→30K

15.5 - 18.6 mi

Top 18%
×9stories
+181ft-148ft

Overall

5216

Females

488

F18-39

488

30K→20M

18.6 - 20.0 mi

Top 17%
×5stories
+64ft-50ft

Overall

4949

Females

488

F18-39

488

20M→21M

20.0 - 21.0 mi

Top 19%
×8stories
+106ft-24ft

Overall

5408

Females

718

F18-39

718

21M→35K

21.0 - 21.8 mi

Top 17%
×7stories
+17ft-86ft

Overall

4949

Females

580

F18-39

580

35K→23M

21.8 - 23.0 mi

Top 18%
×5stories
+23ft-63ft

Overall

5224

Females

738

F18-39

738

23M→24M

23.0 - 24.0 mi

Top 16%
×6stories
+12ft-82ft

Overall

4659

Females

620

F18-39

620

24M→40K

24.0 - 24.9 mi

Top 16%
×1story
+6ft-20ft

Overall

4593

Females

657

F18-39

657

40K→25.2M

24.9 - 25.2 mi

Top 18%
×1story
+13ft-16ft

Overall

5079

Females

877

F18-39

877

25.2M→Finish

25.2 - 26.2 mi

Top 17%
×2stories
+22ft-21ft

Overall

4742

Females

767

F18-39

767

Passing Analysis

Category:
Athletes Passed
856
Passed By
1418
Net Change
-562
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3982
5K → 10K130194-64#3982#4046
10K → 15K55159-104#4046#4150
15K → 20K79146-67#4150#4217
20K → Half1560-45#4217#4262
Half → 25K72113-41#4262#4303
25K → 30K108239-131#4303#4434
30K → 20M6596-31#4434#4465
20M → 21M5399-46#4465#4511
21M → 35K4838+10#4511#4501
35K → 23M6381-18#4501#4519
23M → 24M6058+2#4519#4517
24M → 40K5340+13#4517#4504
40K → 25.2M1735-18#4504#4522
25.2M → Finish3860-22#4522#4544
TOTALS8561418-562
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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