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BOSTON MARATHON 2025

Daniela Tkach

Bib: 17938•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 46%
Gender (Female)
#0 / 12228
Top 32%
Masters (Masters Women)
#0 / 6759
Top 17%
Division (F40-44)
#0 / 1718
Top 35%
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
7:34/mi
23:32
↑ 97↓ 3451.5%
10K· 6.21 mi
7:42/mi
47:27
↑ 79↓ 1380.4%
15K· 9.32 mi
7:52/mi
1:11:52
↑ 67↓ 78
20K· 12.43 mi
7:59/mi
1:36:39
↑ 106↓ 860.1%
Half· 13.11 mi
7:55/mi
1:42:03
↑ 19↓ 370.5%
25K· 15.53 mi
8:07/mi
2:01:44
↑ 66↓ 880.2%
30K· 18.64 mi
8:23/mi
2:27:46
↑ 181↓ 1480.2%
20M
8:18/mi
2:39:03
↑ 64↓ 500.2%
21M
8:53/mi
2:47:56
↑ 106↓ 241.6%
35K· 21.75 mi
8:00/mi
2:53:55
↑ 17↓ 861.7%
23M
8:10/mi
3:04:08
↑ 23↓ 630.6%
24M
8:00/mi
3:12:08
↓ 821.3%
40K· 24.85 mi
8:08/mi
3:19:05
↓ 200.3%
25.2M
8:45/mi
3:22:06
↑ 13↓ 160.2%
Finish· 26.22 mi
7:40/mi
3:29:55
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:03
Pace7:47 /mi
2nd Half
Distance13.11 mi
Time1:47:52
Pace8:14 /mi
📊Positive Split: 5.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:4823:327:3423:32
7:34
-
10K
6.21 mi11:37:4347:277:3823:55
7:42
+0:08
15K
9.32 mi12:02:081:11:527:4324:25
7:52
+0:10
20K
12.43 mi12:26:551:36:397:4724:47
7:59
+0:07
Half
13.11 mi12:32:191:42:037:475:24
7:55
-0:04
25K
15.53 mi12:52:002:01:447:5019:41
8:07
+0:12
30K
18.64 mi13:18:022:27:467:5626:02
8:23
+0:16
20M
20.00 mi13:29:192:39:037:5711:17
8:18
-0:05
21M
21.00 mi13:38:122:47:568:008:53
8:53
+0:35
35K
21.75 mi13:44:112:53:558:005:59
8:00
-0:53
23M
23.00 mi13:54:243:04:088:0010:13
8:10
+0:10
24M
24.00 mi14:02:243:12:088:008:00
8:00
-0:10
40K
24.85 mi14:09:213:19:058:016:57
8:08
+0:08
25.2M
25.20 mi14:12:223:22:068:013:01
8:45
+0:37
Finish
26.22 mi14:20:113:29:558:017:49
7:40
-1:05

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

7:34 /mi

Average Pace

8:01 /mi

Slowest Pace

8:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:51:59

82% of race

Time at Steady Pace

37:56

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:00 /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 mi11:13:4823:327:3423:32
7:34
#12915
10K
6.21 mi11:37:4347:277:3823:55
7:42
#13370
15K
9.32 mi12:02:081:11:527:4324:25
7:52
#13846
20K
12.43 mi12:26:551:36:397:4724:47
7:59
#14070
Half
13.11 mi12:32:191:42:037:475:24
7:55
#14123
25K
15.53 mi12:52:002:01:447:5019:41
8:07
#14191
30K
18.64 mi13:18:022:27:467:5626:02
8:23
#14094
20M
20.00 mi13:29:192:39:037:5711:17
8:18
#13934
21M
21.00 mi13:38:122:47:568:008:53
8:53
#13827
35K
21.75 mi13:44:112:53:558:005:59
8:00
#13753
23M
23.00 mi13:54:243:04:088:0010:13
8:10
#13574
24M
24.00 mi14:02:243:12:088:008:00
8:00
#13434
40K
24.85 mi14:09:213:19:058:016:57
8:08
#13326
25.2M
25.20 mi14:12:223:22:068:013:01
8:45
#13268
Finish
26.22 mi14:20:113:29:558:017:49
7:40
#13192
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi129153274327414897(Top 52%)4524(Top 37%)4524(Top 263%)
10K6.21 mi3.10 mi13370-4553571-2973571-29713894(Top 49%)3895(Top 32%)3895(Top 227%)
15K9.32 mi3.11 mi13846-4763873-3023873-30214897(Top 52%)4524(Top 37%)4524(Top 263%)
20K12.43 mi3.11 mi14070-2244044-1714044-17114755(Top 52%)4506(Top 37%)4506(Top 262%)
Half13.11 mi0.68 mi14123-534076-324076-3215230(Top 54%)4727(Top 39%)4727(Top 275%)
25K15.53 mi2.42 mi14191-684151-754151-7514758(Top 52%)4614(Top 38%)4614(Top 269%)
30K18.64 mi3.11 mi14094+974162-114162-1114016(Top 49%)4375(Top 36%)4375(Top 255%)
20M20.00 mi1.36 mi13934+1604105+574105+5712528(Top 44%)3711(Top 30%)3711(Top 216%)
21M21.00 mi1.00 mi13827+1074074+314074+3112844(Top 45%)4041(Top 33%)4041(Top 235%)
35K21.75 mi0.75 mi13753+744053+214053+2112290(Top 43%)3797(Top 31%)3797(Top 221%)
23M23.00 mi1.25 mi13574+1793997+563997+5611150(Top 39%)3307(Top 27%)3307(Top 192%)
24M24.00 mi1.00 mi13434+1403940+573940+5711278(Top 40%)3458(Top 28%)3458(Top 201%)
40K24.85 mi0.85 mi13326+1083909+313909+3111131(Top 39%)3476(Top 28%)3476(Top 202%)
25.2M25.20 mi0.35 mi13268+583892+173892+1710396(Top 37%)3232(Top 26%)3232(Top 188%)
Finish26.22 mi1.02 mi13192+763868+243868+2410521(Top 37%)3236(Top 26%)3236(Top 188%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21story building
+97ft-345ft

Overall

14897

Females

4524

F40-44

4524

5K→10K

3.1 - 6.2 mi

Top 49%
×5story building
+79ft-138ft

Overall

13894

Females

3895

F40-44

3895

10K→15K

6.2 - 9.3 mi

Top 52%
×3story building
+67ft-78ft

Overall

14897

Females

4524

F40-44

4524

15K→20K

9.3 - 12.4 mi

Top 52%
×5story building
+106ft-86ft

Overall

14755

Females

4506

F40-44

4506

20K→Half

12.4 - 13.1 mi

Top 54%
×2story building
+19ft-37ft

Overall

15230

Females

4727

F40-44

4727

Half→25K

13.1 - 15.5 mi

Top 52%
×4story building
+66ft-88ft

Overall

14758

Females

4614

F40-44

4614

25K→30K

15.5 - 18.6 mi

Top 49%
×9story building
+181ft-148ft

Overall

14016

Females

4375

F40-44

4375

30K→20M

18.6 - 20.0 mi

Top 44%
×5story building
+64ft-50ft

Overall

12528

Females

3711

F40-44

3711

20M→21M

20.0 - 21.0 mi

Top 45%
×8story building
+106ft-24ft

Overall

12844

Females

4041

F40-44

4041

21M→35K

21.0 - 21.8 mi

Top 43%
×7story building
+17ft-86ft

Overall

12290

Females

3797

F40-44

3797

35K→23M

21.8 - 23.0 mi

Top 39%
×5story building
+23ft-63ft

Overall

11150

Females

3307

F40-44

3307

23M→24M

23.0 - 24.0 mi

Top 40%
×6story building
+12ft-82ft

Overall

11278

Females

3458

F40-44

3458

24M→40K

24.0 - 24.9 mi

Top 39%
×1story
+6ft-20ft

Overall

11131

Females

3476

F40-44

3476

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

10396

Females

3232

F40-44

3232

25.2M→Finish

25.2 - 26.2 mi

Top 37%
×2story building
+22ft-21ft

Overall

10521

Females

3236

F40-44

3236

Passing Analysis

Category:
Athletes Passed
1929
Passed By
2206
Net Change
-277
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12915
5K → 10K130585-455#12915#13370
10K → 15K83559-476#13370#13846
15K → 20K145369-224#13846#14070
20K → Half2073-53#14070#14123
Half → 25K140208-68#14123#14191
25K → 30K304207+97#14191#14094
30K → 20M19636+160#14094#13934
20M → 21M15548+107#13934#13827
21M → 35K9218+74#13827#13753
35K → 23M20526+179#13753#13574
23M → 24M16323+140#13574#13434
24M → 40K12820+108#13434#13326
40K → 25.2M635+58#13326#13268
25.2M → Finish10529+76#13268#13192
TOTALS19292206-277
📊

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