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BOSTON MARATHON 2025

Daniela Hernandez

Bib: 18561•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 46%
Gender (Female)
#0 / 12228
Top 31%
Division (F18-39)
#0 / 5469
Top 49%
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
7:35/mi
23:34
↑ 97↓ 3451.5%
10K· 6.21 mi
7:49/mi
47:50
↑ 79↓ 1380.4%
15K· 9.32 mi
7:38/mi
1:11:33
↑ 67↓ 78
20K· 12.43 mi
7:45/mi
1:35:39
↑ 106↓ 860.1%
Half· 13.11 mi
7:34/mi
1:40:49
↑ 19↓ 370.5%
25K· 15.53 mi
7:48/mi
1:59:44
↑ 66↓ 880.2%
30K· 18.64 mi
8:03/mi
2:24:46
↑ 181↓ 1480.2%
20M
8:31/mi
2:36:21
↑ 64↓ 500.2%
21M
9:00/mi
2:45:21
↑ 106↓ 241.6%
35K· 21.75 mi
8:19/mi
2:51:34
↑ 17↓ 861.7%
23M
8:42/mi
3:02:27
↑ 23↓ 630.6%
24M
8:22/mi
3:10:49
↓ 821.3%
40K· 24.85 mi
8:31/mi
3:18:06
↓ 200.3%
25.2M
9:11/mi
3:21:16
↑ 13↓ 160.2%
Finish· 26.22 mi
8:02/mi
3:29:27
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:49
Pace7:41 /mi
2nd Half
Distance13.11 mi
Time1:48:38
Pace8:17 /mi
📊Positive Split: 7.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:1723:347:3523:34
7:35
-
10K
6.21 mi11:39:3347:507:4224:16
7:49
+0:14
15K
9.32 mi12:03:161:11:337:4123:43
7:38
-0:11
20K
12.43 mi12:27:221:35:397:4224:06
7:45
+0:07
Half
13.11 mi12:32:321:40:497:415:10
7:34
-0:11
25K
15.53 mi12:51:271:59:447:4218:55
7:48
+0:14
30K
18.64 mi13:16:292:24:467:4625:02
8:03
+0:15
20M
20.00 mi13:28:042:36:217:4911:35
8:31
+0:28
21M
21.00 mi13:37:042:45:217:529:00
9:00
+0:29
35K
21.75 mi13:43:172:51:347:536:13
8:19
-0:41
23M
23.00 mi13:54:103:02:277:5610:53
8:42
+0:23
24M
24.00 mi14:02:323:10:497:578:22
8:22
-0:20
40K
24.85 mi14:09:493:18:067:587:17
8:31
+0:09
25.2M
25.20 mi14:12:593:21:167:593:10
9:11
+0:40
Finish
26.22 mi14:21:103:29:278:008:11
8:02
-1:09

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

8:00 /mi

Slowest Pace

9:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:16:33

37% of race

Time at Steady Pace

1:16:24

36% of race

Time at Slower Pace

56:30

27% of race

Average Pace: 7:59 /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 mi11:15:1723:347:3523:34
7:35
#13004
10K
6.21 mi11:39:3347:507:4224:16
7:49
#13905
15K
9.32 mi12:03:161:11:337:4123:43
7:38
#13553
20K
12.43 mi12:27:221:35:397:4224:06
7:45
#13331
Half
13.11 mi12:32:321:40:497:415:10
7:34
#13272
25K
15.53 mi12:51:271:59:447:4218:55
7:48
#13089
30K
18.64 mi13:16:292:24:467:4625:02
8:03
#12794
20M
20.00 mi13:28:042:36:217:4911:35
8:31
#12889
21M
21.00 mi13:37:042:45:217:529:00
9:00
#12893
35K
21.75 mi13:43:172:51:347:536:13
8:19
#12934
23M
23.00 mi13:54:103:02:277:5610:53
8:42
#13025
24M
24.00 mi14:02:323:10:497:578:22
8:22
#13038
40K
24.85 mi14:09:493:18:067:587:17
8:31
#13048
25.2M
25.20 mi14:12:593:21:167:593:10
9:11
#13050
Finish
26.22 mi14:21:103:29:278:008:11
8:02
#13066
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi130043319331912930(Top 46%)3407(Top 28%)3407(Top 62%)
10K6.21 mi3.10 mi13905-9013883-5643883-56414931(Top 53%)4490(Top 37%)4490(Top 82%)
15K9.32 mi3.11 mi13553+3523719+1643719+16412930(Top 46%)3407(Top 28%)3407(Top 62%)
20K12.43 mi3.11 mi13331+2223622+973622+9712933(Top 46%)3512(Top 29%)3512(Top 64%)
Half13.11 mi0.68 mi13272+593599+233599+2312435(Top 44%)3202(Top 26%)3202(Top 59%)
25K15.53 mi2.42 mi13089+1833532+673532+6712402(Top 44%)3342(Top 27%)3342(Top 61%)
30K18.64 mi3.11 mi12794+2953415+1173415+11711814(Top 42%)3204(Top 26%)3204(Top 59%)
20M20.00 mi1.36 mi12889-953523-1083523-10813947(Top 49%)4482(Top 37%)4482(Top 82%)
21M21.00 mi1.00 mi12893-43557-343557-3413519(Top 48%)4367(Top 36%)4367(Top 80%)
35K21.75 mi0.75 mi12934-413588-313588-3114314(Top 50%)4845(Top 40%)4845(Top 89%)
23M23.00 mi1.25 mi13025-913682-943682-9414512(Top 51%)5070(Top 41%)5070(Top 93%)
24M24.00 mi1.00 mi13038-133725-433725-4313672(Top 48%)4646(Top 38%)4646(Top 85%)
40K24.85 mi0.85 mi13048-103759-343759-3413564(Top 48%)4730(Top 39%)4730(Top 86%)
25.2M25.20 mi0.35 mi13050-23766-73766-712855(Top 45%)4413(Top 36%)4413(Top 81%)
Finish26.22 mi1.02 mi13066-163798-323798-3213096(Top 46%)4484(Top 37%)4484(Top 82%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×21story building
+97ft-345ft

Overall

12930

Females

3407

F18-39

3407

5K→10K

3.1 - 6.2 mi

Top 53%
×5story building
+79ft-138ft

Overall

14931

Females

4490

F18-39

4490

10K→15K

6.2 - 9.3 mi

Top 46%
×3story building
+67ft-78ft

Overall

12930

Females

3407

F18-39

3407

15K→20K

9.3 - 12.4 mi

Top 46%
×5story building
+106ft-86ft

Overall

12933

Females

3512

F18-39

3512

20K→Half

12.4 - 13.1 mi

Top 44%
×2story building
+19ft-37ft

Overall

12435

Females

3202

F18-39

3202

Half→25K

13.1 - 15.5 mi

Top 44%
×4story building
+66ft-88ft

Overall

12402

Females

3342

F18-39

3342

25K→30K

15.5 - 18.6 mi

Top 42%
×9story building
+181ft-148ft

Overall

11814

Females

3204

F18-39

3204

30K→20M

18.6 - 20.0 mi

Top 49%
×5story building
+64ft-50ft

Overall

13947

Females

4482

F18-39

4482

20M→21M

20.0 - 21.0 mi

Top 48%
×8story building
+106ft-24ft

Overall

13519

Females

4367

F18-39

4367

21M→35K

21.0 - 21.8 mi

Top 50%
×7story building
+17ft-86ft

Overall

14314

Females

4845

F18-39

4845

35K→23M

21.8 - 23.0 mi

Top 51%
×5story building
+23ft-63ft

Overall

14512

Females

5070

F18-39

5070

23M→24M

23.0 - 24.0 mi

Top 48%
×6story building
+12ft-82ft

Overall

13672

Females

4646

F18-39

4646

24M→40K

24.0 - 24.9 mi

Top 48%
×1story
+6ft-20ft

Overall

13564

Females

4730

F18-39

4730

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1story
+13ft-16ft

Overall

12855

Females

4413

F18-39

4413

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2story building
+22ft-21ft

Overall

13096

Females

4484

F18-39

4484

Passing Analysis

Category:
Athletes Passed
2015
Passed By
2077
Net Change
-62
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13004
5K → 10K65966-901#13004#13905
10K → 15K40755+352#13905#13553
15K → 20K29068+222#13553#13331
20K → Half678+59#13331#13272
Half → 25K25471+183#13272#13089
25K → 30K37883+295#13089#12794
30K → 20M96191-95#12794#12889
20M → 21M103107-4#12889#12893
21M → 35K4081-41#12893#12934
35K → 23M89180-91#12934#13025
23M → 24M7083-13#13025#13038
24M → 40K7484-10#13038#13048
40K → 25.2M2729-2#13048#13050
25.2M → Finish5571-16#13050#13066
TOTALS20152077-62
📊

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