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BOSTON MARATHON 2025

Danielle Spence

Bib: 27855•F

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 42%
Division (F40-44)
#0 / 1718
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
9:02/mi
28:05
↑ 97↓ 3451.5%
10K· 6.21 mi
8:49/mi
55:27
↑ 79↓ 1380.4%
15K· 9.32 mi
8:54/mi
1:23:05
↑ 67↓ 78
20K· 12.43 mi
8:41/mi
1:50:05
↑ 106↓ 860.1%
Half· 13.11 mi
8:21/mi
1:55:47
↑ 19↓ 370.5%
25K· 15.53 mi
8:53/mi
2:17:19
↑ 66↓ 880.2%
30K· 18.64 mi
8:39/mi
2:44:10
↑ 181↓ 1480.2%
20M
8:19/mi
2:55:28
↑ 64↓ 500.2%
21M
8:51/mi
3:04:19
↑ 106↓ 241.6%
35K· 21.75 mi
8:01/mi
3:10:19
↑ 17↓ 861.7%
23M
8:09/mi
3:20:31
↑ 23↓ 630.6%
24M
8:04/mi
3:28:35
↓ 821.3%
40K· 24.85 mi
8:14/mi
3:35:37
↓ 200.3%
25.2M
9:28/mi
3:38:53
↑ 13↓ 160.2%
Finish· 26.22 mi
8:22/mi
3:47:25
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:55:47
Pace8:50 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:51:38
Pace8:31 /mi
📊Negative Split: 3.6% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:3928:059:0228:05
9:02
-
10K
6.21 mi12:19:0155:278:5527:22
8:49
-0:13
15K
9.32 mi12:46:391:23:058:5527:38
8:54
+0:05
20K
12.43 mi13:13:391:50:058:5127:00
8:41
-0:13
Half
13.11 mi13:19:211:55:478:505:42
8:21
-0:20
25K
15.53 mi13:40:532:17:198:5021:32
8:53
+0:32
30K
18.64 mi14:07:442:44:108:4826:51
8:39
-0:14
20M
20.00 mi14:19:022:55:288:4611:18
8:19
-0:20
21M
21.00 mi14:27:533:04:198:478:51
8:51
+0:32
35K
21.75 mi14:33:533:10:198:456:00
8:01
-0:50
23M
23.00 mi14:44:053:20:318:4310:12
8:09
+0:08
24M
24.00 mi14:52:093:28:358:418:04
8:04
-0:05
40K
24.85 mi14:59:113:35:378:417:02
8:14
+0:10
25.2M
25.20 mi15:02:273:38:538:413:16
9:28
+1:14
Finish
26.22 mi15:10:593:47:258:418:32
8:22
-1:06

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

8:01 /mi

Average Pace

8:41 /mi

Slowest Pace

9:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:18:03

61% of race

Time at Steady Pace

1:26:06

38% of race

Time at Slower Pace

3:16

1% of race

Average Pace: 8:40 /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 mi11:51:3928:059:0228:05
9:02
#22593
10K
6.21 mi12:19:0155:278:5527:22
8:49
#22072
15K
9.32 mi12:46:391:23:058:5527:38
8:54
#21879
20K
12.43 mi13:13:391:50:058:5127:00
8:41
#21217
Half
13.11 mi13:19:211:55:478:505:42
8:21
#21092
25K
15.53 mi13:40:532:17:198:5021:32
8:53
#20817
30K
18.64 mi14:07:442:44:108:4826:51
8:39
#19900
20M
20.00 mi14:19:022:55:288:4611:18
8:19
#19424
21M
21.00 mi14:27:533:04:198:478:51
8:51
#19046
35K
21.75 mi14:33:533:10:198:456:00
8:01
#18834
23M
23.00 mi14:44:053:20:318:4310:12
8:09
#18385
24M
24.00 mi14:52:093:28:358:418:04
8:04
#18097
40K
24.85 mi14:59:113:35:378:417:02
8:14
#17851
25.2M
25.20 mi15:02:273:38:538:413:16
9:28
#17789
Finish
26.22 mi15:10:593:47:258:418:32
8:22
#17715
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi225938952895221552(Top 76%)8303(Top 68%)8303(Top 483%)
10K6.21 mi3.10 mi22072+5218653+2998653+29921439(Top 75%)8269(Top 68%)8269(Top 481%)
15K9.32 mi3.11 mi21879+1938531+1228531+12221552(Top 76%)8303(Top 68%)8303(Top 483%)
20K12.43 mi3.11 mi21217+6628154+3778154+37719369(Top 68%)7114(Top 58%)7114(Top 414%)
Half13.11 mi0.68 mi21092+1258076+788076+7818350(Top 65%)6527(Top 53%)6527(Top 380%)
25K15.53 mi2.42 mi20817+2757939+1377939+13719345(Top 68%)7168(Top 59%)7168(Top 417%)
30K18.64 mi3.11 mi19900+9177465+4747465+47415668(Top 55%)5271(Top 43%)5271(Top 307%)
20M20.00 mi1.36 mi19424+4767220+2457220+24512627(Top 44%)3774(Top 31%)3774(Top 220%)
21M21.00 mi1.00 mi19046+3787028+1927028+19212656(Top 45%)3966(Top 32%)3966(Top 231%)
35K21.75 mi0.75 mi18834+2126927+1016927+10112465(Top 44%)3900(Top 32%)3900(Top 227%)
23M23.00 mi1.25 mi18385+4496696+2316696+23111073(Top 39%)3275(Top 27%)3275(Top 191%)
24M24.00 mi1.00 mi18097+2886569+1276569+12711741(Top 41%)3694(Top 30%)3694(Top 215%)
40K24.85 mi0.85 mi17851+2466463+1066463+10611778(Top 41%)3813(Top 31%)3813(Top 222%)
25.2M25.20 mi0.35 mi17789+626439+246439+2414539(Top 51%)5328(Top 44%)5328(Top 310%)
Finish26.22 mi1.02 mi17715+746418+216418+2115430(Top 54%)5719(Top 47%)5719(Top 333%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21story building
+97ft-345ft

Overall

21552

Females

8303

F40-44

8303

5K→10K

3.1 - 6.2 mi

Top 75%
×5story building
+79ft-138ft

Overall

21439

Females

8269

F40-44

8269

10K→15K

6.2 - 9.3 mi

Top 76%
×3story building
+67ft-78ft

Overall

21552

Females

8303

F40-44

8303

15K→20K

9.3 - 12.4 mi

Top 68%
×5story building
+106ft-86ft

Overall

19369

Females

7114

F40-44

7114

20K→Half

12.4 - 13.1 mi

Top 65%
×2story building
+19ft-37ft

Overall

18350

Females

6527

F40-44

6527

Half→25K

13.1 - 15.5 mi

Top 68%
×4story building
+66ft-88ft

Overall

19345

Females

7168

F40-44

7168

25K→30K

15.5 - 18.6 mi

Top 55%
×9story building
+181ft-148ft

Overall

15668

Females

5271

F40-44

5271

30K→20M

18.6 - 20.0 mi

Top 44%
×5story building
+64ft-50ft

Overall

12627

Females

3774

F40-44

3774

20M→21M

20.0 - 21.0 mi

Top 45%
×8story building
+106ft-24ft

Overall

12656

Females

3966

F40-44

3966

21M→35K

21.0 - 21.8 mi

Top 44%
×7story building
+17ft-86ft

Overall

12465

Females

3900

F40-44

3900

35K→23M

21.8 - 23.0 mi

Top 39%
×5story building
+23ft-63ft

Overall

11073

Females

3275

F40-44

3275

23M→24M

23.0 - 24.0 mi

Top 41%
×6story building
+12ft-82ft

Overall

11741

Females

3694

F40-44

3694

24M→40K

24.0 - 24.9 mi

Top 41%
×1story
+6ft-20ft

Overall

11778

Females

3813

F40-44

3813

40K→25.2M

24.9 - 25.2 mi

Top 51%
×1story
+13ft-16ft

Overall

14539

Females

5328

F40-44

5328

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2story building
+22ft-21ft

Overall

15430

Females

5719

F40-44

5719

Passing Analysis

Category:
Athletes Passed
5138
Passed By
260
Net Change
+4878
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22593
5K → 10K59877+521#22593#22072
10K → 15K299106+193#22072#21879
15K → 20K6697+662#21879#21217
20K → Half1283+125#21217#21092
Half → 25K30227+275#21092#20817
25K → 30K9181+917#20817#19900
30K → 20M4760+476#19900#19424
20M → 21M3780+378#19424#19046
21M → 35K2120+212#19046#18834
35K → 23M4501+449#18834#18385
23M → 24M2880+288#18385#18097
24M → 40K2482+246#18097#17851
40K → 25.2M653+62#17851#17789
25.2M → Finish10733+74#17789#17715
TOTALS5138260+4878
📊

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