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BOSTON MARATHON 2025

Danielle Senzer

Bib: 19085•F

MA

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0:00
0:00
/ mi
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Overall
#0 / 28404
Top 40%
Gender (Female)
#0 / 12228
Top 24%
Age Group (F18-39)
#0 / 5469
Top 40%
Race Day Weather
50°/40°F
broken clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
24:51
Rank: #16578
Start → 5K
24:51 | 8:00/mi
10K· 6.21 mi
48:57
Rank: #15465 (+1113)
5K → 10K
24:06 | 7:45/mi
15K· 9.32 mi
1:13:00
Rank: #14906 (+559)
10K → 15K
24:03 | 7:44/mi
20K· 12.43 mi
1:36:57
Rank: #14255 (+651)
15K → 20K
23:57 | 7:43/mi
Half· 13.11 mi
1:42:11
Rank: #14205 (+50)
20K → Half
5:14 | 7:40/mi
25K· 15.53 mi
2:00:52
Rank: #13725 (+480)
Half → 25K
18:41 | 7:42/mi
30K· 18.64 mi
2:25:32
Rank: #13156 (+569)
25K → 30K
24:40 | 7:56/mi
20M
2:36:18
Rank: #12861 (+295)
30K → 20M
10:46 | 7:55/mi
21M
2:44:34
Rank: #12598 (+263)
20M → 21M
8:16 | 8:16/mi
35K· 21.75 mi
2:50:17
Rank: #12458 (+140)
21M → 35K
5:43 | 7:38/mi
23M
3:00:07
Rank: #12217 (+241)
35K → 23M
9:50 | 7:51/mi
24M
3:07:39
Rank: #11991 (+226)
23M → 24M
7:32 | 7:32/mi
40K· 24.85 mi
3:14:10
Rank: #11788 (+203)
24M → 40K
6:31 | 7:37/mi
25.2M
3:16:52
Rank: #11652 (+136)
40K → 25.2M
2:42 | 7:50/mi
Finish· 26.22 mi
3:24:00
Rank: #11338 (+314)
25.2M → Finish
7:08 | 7:00/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half⚖️ Balanced
via Half
Distance13.11 mi
Time1:42:11
Pace7:48 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:41:49
Pace7:46 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:4124:518:0024:51
8:00
-
10K
6.21 mi11:39:4748:577:5324:06
7:45
-0:15
15K
9.32 mi12:03:501:13:007:5024:03
7:44
-0:01
20K
12.43 mi12:27:471:36:577:4823:57
7:43
-0:01
Half
13.11 mi12:33:011:42:117:485:14
7:40
-0:03
25K
15.53 mi12:51:422:00:527:4718:41
7:42
+0:02
30K
18.64 mi13:16:222:25:327:4824:40
7:56
+0:14
20M
20.00 mi13:27:082:36:187:4910:46
7:55
-0:01
21M
21.00 mi13:35:242:44:347:508:16
8:16
+0:21
35K
21.75 mi13:41:072:50:177:505:43
7:38
-0:38
23M
23.00 mi13:50:573:00:077:509:50
7:51
+0:13
24M
24.00 mi13:58:293:07:397:497:32
7:32
-0:19
40K
24.85 mi14:05:003:14:107:496:31
7:37
+0:05
25.2M
25.20 mi14:07:423:16:527:492:42
7:50
+0:13
Finish
26.22 mi14:14:503:24:007:477:08
7:00
-0:50

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

7:00 /mi

Average Pace

7:47 /mi

Slowest Pace

8:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

32:08

16% of race

Time at Steady Pace

2:43:36

80% of race

Time at Slower Pace

8:16

4% of race

Average Pace: 7:47 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:15:4124:518:0024:51
8:00
#16578
10K
6.21 mi11:39:4748:577:5324:06
7:45
#15465
15K
9.32 mi12:03:501:13:007:5024:03
7:44
#14906
20K
12.43 mi12:27:471:36:577:4823:57
7:43
#14255
Half
13.11 mi12:33:011:42:117:485:14
7:40
#14205
25K
15.53 mi12:51:422:00:527:4718:41
7:42
#13725
30K
18.64 mi13:16:222:25:327:4824:40
7:56
#13156
20M
20.00 mi13:27:082:36:187:4910:46
7:55
#12861
21M
21.00 mi13:35:242:44:347:508:16
8:16
#12598
35K
21.75 mi13:41:072:50:177:505:43
7:38
#12458
23M
23.00 mi13:50:573:00:077:509:50
7:51
#12217
24M
24.00 mi13:58:293:07:397:497:32
7:32
#11991
40K
24.85 mi14:05:003:14:107:496:31
7:37
#11788
25.2M
25.20 mi14:07:423:16:527:492:42
7:50
#11652
Finish
26.22 mi14:14:503:24:007:477:08
7:00
#11338
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi165785496549613869(Top 49%)3932(Top 32%)3932(Top 72%)
10K6.21 mi3.10 mi15465+11134811+6854811+68514408(Top 51%)4190(Top 34%)4190(Top 77%)
15K9.32 mi3.11 mi14906+5594499+3124499+31213869(Top 49%)3932(Top 32%)3932(Top 72%)
20K12.43 mi3.11 mi14255+6514151+3484151+34812503(Top 44%)3273(Top 27%)3273(Top 60%)
Half13.11 mi0.68 mi14205+504125+264125+2613179(Top 46%)3579(Top 29%)3579(Top 65%)
25K15.53 mi2.42 mi13725+4803882+2433882+24311600(Top 41%)2904(Top 24%)2904(Top 53%)
30K18.64 mi3.11 mi13156+5693642+2403642+24010966(Top 39%)2767(Top 23%)2767(Top 51%)
20M20.00 mi1.36 mi12861+2953506+1363506+1369960(Top 35%)2421(Top 20%)2421(Top 44%)
21M21.00 mi1.00 mi12598+2633390+1163390+1169047(Top 32%)2190(Top 18%)2190(Top 40%)
35K21.75 mi0.75 mi12458+1403340+503340+509690(Top 34%)2465(Top 20%)2465(Top 45%)
23M23.00 mi1.25 mi12217+2413251+893251+898995(Top 32%)2261(Top 18%)2261(Top 41%)
24M24.00 mi1.00 mi11991+2263168+833168+837987(Top 28%)1872(Top 15%)1872(Top 34%)
40K24.85 mi0.85 mi11788+2033095+733095+737626(Top 27%)1831(Top 15%)1831(Top 33%)
25.2M25.20 mi0.35 mi11652+1363036+593036+595155(Top 18%)953(Top 8%)953(Top 17%)
Finish26.22 mi1.02 mi11338+3142919+1172919+1175781(Top 20%)1176(Top 10%)1176(Top 22%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21stories
+97ft-345ft

Overall

13869

Females

3932

F18-39

3932

5K→10K

3.1 - 6.2 mi

Top 51%
×5stories
+79ft-138ft

Overall

14408

Females

4190

F18-39

4190

10K→15K

6.2 - 9.3 mi

Top 49%
×3stories
+67ft-78ft

Overall

13869

Females

3932

F18-39

3932

15K→20K

9.3 - 12.4 mi

Top 44%
×5stories
+106ft-86ft

Overall

12503

Females

3273

F18-39

3273

20K→Half

12.4 - 13.1 mi

Top 46%
×2stories
+19ft-37ft

Overall

13179

Females

3579

F18-39

3579

Half→25K

13.1 - 15.5 mi

Top 41%
×4stories
+66ft-88ft

Overall

11600

Females

2904

F18-39

2904

25K→30K

15.5 - 18.6 mi

Top 39%
×9stories
+181ft-148ft

Overall

10966

Females

2767

F18-39

2767

30K→20M

18.6 - 20.0 mi

Top 35%
×5stories
+64ft-50ft

Overall

9960

Females

2421

F18-39

2421

20M→21M

20.0 - 21.0 mi

Top 32%
×8stories
+106ft-24ft

Overall

9047

Females

2190

F18-39

2190

21M→35K

21.0 - 21.8 mi

Top 34%
×7stories
+17ft-86ft

Overall

9690

Females

2465

F18-39

2465

35K→23M

21.8 - 23.0 mi

Top 32%
×5stories
+23ft-63ft

Overall

8995

Females

2261

F18-39

2261

23M→24M

23.0 - 24.0 mi

Top 28%
×6stories
+12ft-82ft

Overall

7987

Females

1872

F18-39

1872

24M→40K

24.0 - 24.9 mi

Top 27%
×1story
+6ft-20ft

Overall

7626

Females

1831

F18-39

1831

40K→25.2M

24.9 - 25.2 mi

Top 18%
×1story
+13ft-16ft

Overall

5155

Females

953

F18-39

953

25.2M→Finish

25.2 - 26.2 mi

Top 20%
×2stories
+22ft-21ft

Overall

5781

Females

1176

F18-39

1176

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
5408
Passed By
168
Net Change
+5240
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16578
5K → 10K115643+1113#16578#15465
10K → 15K58425+559#15465#14906
15K → 20K6609+651#14906#14255
20K → Half6212+50#14255#14205
Half → 25K4877+480#14205#13725
25K → 30K59627+569#13725#13156
30K → 20M3049+295#13156#12861
20M → 21M2718+263#12861#12598
21M → 35K1488+140#12598#12458
35K → 23M2476+241#12458#12217
23M → 24M2293+226#12217#11991
24M → 40K2096+203#11991#11788
40K → 25.2M1371+136#11788#11652
25.2M → Finish3184+314#11652#11338
TOTALS5408168+5240
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing