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BOSTON MARATHON 2025

Dannika Kortscheff

Bib: 12173•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 50%
Gender (Female)
#0 / 12228
Top 36%
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:41
Rank: #13329
Start → 5K
7:37/mi
23:41 split
10K· 6.21 mi
47:44
Rank: #13778 (-449)
5K → 10K
7:44/mi
24:03 split
15K· 9.32 mi
1:11:40
Rank: #13659 (+119)
10K → 15K
7:42/mi
23:56 split
20K· 12.43 mi
1:36:37
Rank: #14039 (-380)
15K → 20K
8:02/mi
24:57 split
Half· 13.11 mi
1:41:58
Rank: #14066 (-27)
20K → Half
7:50/mi
5:21 split
25K· 15.53 mi
2:01:36
Rank: #14109 (-43)
Half → 25K
8:06/mi
19:38 split
30K· 18.64 mi
2:27:48
Rank: #14113 (-4)
25K → 30K
8:26/mi
26:12 split
20M
2:39:26
Rank: #14093 (+20)
30K → 20M
8:34/mi
11:38 split
21M
2:48:39
Rank: #14102 (-9)
20M → 21M
9:13/mi
9:13 split
35K· 21.75 mi
2:54:46
Rank: #14069 (+33)
21M → 35K
8:11/mi
6:07 split
23M
3:05:40
Rank: #14124 (-55)
35K → 23M
8:42/mi
10:54 split
24M
3:14:17
Rank: #14165 (-41)
23M → 24M
8:37/mi
8:37 split
40K· 24.85 mi
3:21:45
Rank: #14172 (-7)
24M → 40K
8:44/mi
7:28 split
25.2M
3:25:03
Rank: #14171 (+1)
40K → 25.2M
9:34/mi
3:18 split
Finish· 26.22 mi
3:33:26
Rank: #14149 (+22)
25.2M → Finish
8:14/mi
8:23 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:58
Pace7:47 /mi
2nd Half
Distance13.11 mi
Time1:51:28
Pace8:30 /mi
📊Positive Split: 9.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:4923:417:3723:41
7:37
-
10K
6.21 mi11:15:5247:447:4124:03
7:44
+0:07
15K
9.32 mi11:39:481:11:407:4123:56
7:42
-0:02
20K
12.43 mi12:04:451:36:377:4624:57
8:02
+0:20
Half
13.11 mi12:10:061:41:587:475:21
7:50
-0:12
25K
15.53 mi12:29:442:01:367:5019:38
8:06
+0:16
30K
18.64 mi12:55:562:27:487:5626:12
8:26
+0:20
20M
20.00 mi13:07:342:39:267:5811:38
8:34
+0:08
21M
21.00 mi13:16:472:48:398:029:13
9:13
+0:39
35K
21.75 mi13:22:542:54:468:026:07
8:11
-1:02
23M
23.00 mi13:33:483:05:408:0410:54
8:42
+0:31
24M
24.00 mi13:42:253:14:178:068:37
8:37
-0:05
40K
24.85 mi13:49:533:21:458:077:28
8:44
+0:07
25.2M
25.20 mi13:53:113:25:038:083:18
9:34
+0:50
Finish
26.22 mi14:01:343:33:268:098:23
8:14
-1:20

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

7:37 /mi

Average Pace

8:09 /mi

Slowest Pace

9:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:17:01

36% of race

Time at Steady Pace

1:25:17

40% of race

Time at Slower Pace

51:08

24% of race

Average Pace: 8:08 /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 mi10:51:4923:417:3723:41
7:37
#13329
10K
6.21 mi11:15:5247:447:4124:03
7:44
#13778
15K
9.32 mi11:39:481:11:407:4123:56
7:42
#13659
20K
12.43 mi12:04:451:36:377:4624:57
8:02
#14039
Half
13.11 mi12:10:061:41:587:475:21
7:50
#14066
25K
15.53 mi12:29:442:01:367:5019:38
8:06
#14109
30K
18.64 mi12:55:562:27:487:5626:12
8:26
#14113
20M
20.00 mi13:07:342:39:267:5811:38
8:34
#14093
21M
21.00 mi13:16:472:48:398:029:13
9:13
#14102
35K
21.75 mi13:22:542:54:468:026:07
8:11
#14069
23M
23.00 mi13:33:483:05:408:0410:54
8:42
#14124
24M
24.00 mi13:42:253:14:178:068:37
8:37
#14165
40K
24.85 mi13:49:533:21:458:077:28
8:44
#14172
25.2M
25.20 mi13:53:113:25:038:083:18
9:34
#14171
Finish
26.22 mi14:01:343:33:268:098:23
8:14
#14149
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi133293507350713554(Top 48%)3766(Top 31%)3766(Top 69%)
10K6.21 mi3.10 mi13778-4493814-3073814-30714271(Top 50%)4117(Top 34%)4117(Top 75%)
15K9.32 mi3.11 mi13659+1193775+393775+3913554(Top 48%)3766(Top 31%)3766(Top 69%)
20K12.43 mi3.11 mi14039-3804023-2484023-24815156(Top 53%)4723(Top 39%)4723(Top 86%)
Half13.11 mi0.68 mi14066-274045-224045-2214667(Top 52%)4434(Top 36%)4434(Top 81%)
25K15.53 mi2.42 mi14109-434105-604105-6014635(Top 52%)4553(Top 37%)4553(Top 83%)
30K18.64 mi3.11 mi14113-44173-684173-6814358(Top 51%)4561(Top 37%)4561(Top 83%)
20M20.00 mi1.36 mi14093+204193-204193-2014183(Top 50%)4605(Top 38%)4605(Top 84%)
21M21.00 mi1.00 mi14102-94225-324225-3214725(Top 52%)5012(Top 41%)5012(Top 92%)
35K21.75 mi0.75 mi14069+334225422513492(Top 48%)4423(Top 36%)4423(Top 81%)
23M23.00 mi1.25 mi14124-554297-724297-7214598(Top 51%)5118(Top 42%)5118(Top 94%)
24M24.00 mi1.00 mi14165-414345-484345-4815265(Top 54%)5515(Top 45%)5515(Top 101%)
40K24.85 mi0.85 mi14172-74375-304375-3014822(Top 52%)5419(Top 44%)5419(Top 99%)
25.2M25.20 mi0.35 mi14171+14381-64381-614973(Top 53%)5520(Top 45%)5520(Top 101%)
Finish26.22 mi1.02 mi14149+224396-154396-1514464(Top 51%)5187(Top 42%)5187(Top 95%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21story building
+97ft-345ft

Overall

13554

Females

3766

F18-39

3766

5K→10K

3.1 - 6.2 mi

Top 50%
×5story building
+79ft-138ft

Overall

14271

Females

4117

F18-39

4117

10K→15K

6.2 - 9.3 mi

Top 48%
×3story building
+67ft-78ft

Overall

13554

Females

3766

F18-39

3766

15K→20K

9.3 - 12.4 mi

Top 53%
×5story building
+106ft-86ft

Overall

15156

Females

4723

F18-39

4723

20K→Half

12.4 - 13.1 mi

Top 52%
×2story building
+19ft-37ft

Overall

14667

Females

4434

F18-39

4434

Half→25K

13.1 - 15.5 mi

Top 52%
×4story building
+66ft-88ft

Overall

14635

Females

4553

F18-39

4553

25K→30K

15.5 - 18.6 mi

Top 51%
×9story building
+181ft-148ft

Overall

14358

Females

4561

F18-39

4561

30K→20M

18.6 - 20.0 mi

Top 50%
×5story building
+64ft-50ft

Overall

14183

Females

4605

F18-39

4605

20M→21M

20.0 - 21.0 mi

Top 52%
×8story building
+106ft-24ft

Overall

14725

Females

5012

F18-39

5012

21M→35K

21.0 - 21.8 mi

Top 48%
×7story building
+17ft-86ft

Overall

13492

Females

4423

F18-39

4423

35K→23M

21.8 - 23.0 mi

Top 51%
×5story building
+23ft-63ft

Overall

14598

Females

5118

F18-39

5118

23M→24M

23.0 - 24.0 mi

Top 54%
×6story building
+12ft-82ft

Overall

15265

Females

5515

F18-39

5515

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

14822

Females

5419

F18-39

5419

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

14973

Females

5520

F18-39

5520

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2story building
+22ft-21ft

Overall

14464

Females

5187

F18-39

5187

Passing Analysis

Category:
Athletes Passed
1626
Passed By
2446
Net Change
-820
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13329
5K → 10K136585-449#13329#13778
10K → 15K266147+119#13778#13659
15K → 20K111491-380#13659#14039
20K → Half2653-27#14039#14066
Half → 25K151194-43#14066#14109
25K → 30K266270-4#14109#14113
30K → 20M127107+20#14113#14093
20M → 21M112121-9#14093#14102
21M → 35K7643+33#14102#14069
35K → 23M97152-55#14069#14124
23M → 24M71112-41#14124#14165
24M → 40K7077-7#14165#14172
40K → 25.2M3837+1#14172#14171
25.2M → Finish7957+22#14171#14149
TOTALS16262446-820
📊

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