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BOSTON MARATHON 2025

Karissa Mcdonough

Bib: 18270•F

VT

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 38%
Masters (Masters Women)
#0 / 6759
Top 24%
Division (F50-54)
#0 / 1303
Top 16%
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
7:56/mi
24:40
↑ 97↓ 3451.5%
10K· 6.21 mi
7:50/mi
49:01
↑ 79↓ 1380.4%
15K· 9.32 mi
7:58/mi
1:13:47
↑ 67↓ 78
20K· 12.43 mi
8:05/mi
1:38:54
↑ 106↓ 860.1%
Half· 13.11 mi
8:05/mi
1:44:25
↑ 19↓ 370.5%
25K· 15.53 mi
8:17/mi
2:04:29
↑ 66↓ 880.2%
30K· 18.64 mi
8:28/mi
2:30:47
↑ 181↓ 1480.2%
20M
8:25/mi
2:42:13
↑ 64↓ 500.2%
21M
8:52/mi
2:51:05
↑ 106↓ 241.6%
35K· 21.75 mi
8:19/mi
2:57:18
↑ 17↓ 861.7%
23M
8:26/mi
3:07:52
↑ 23↓ 630.6%
24M
8:25/mi
3:16:17
↓ 821.3%
40K· 24.85 mi
8:29/mi
3:23:32
↓ 200.3%
25.2M
9:52/mi
3:26:56
↑ 13↓ 160.2%
Finish· 26.22 mi
8:18/mi
3:35:23
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:25
Pace7:58 /mi
2nd Half
Distance13.11 mi
Time1:50:58
Pace8:28 /mi
📊Positive Split: 6.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:3824:407:5624:40
7:56
-
10K
6.21 mi11:39:5949:017:5324:21
7:50
-0:06
15K
9.32 mi12:04:451:13:477:5524:46
7:58
+0:08
20K
12.43 mi12:29:521:38:547:5725:07
8:05
+0:07
Half
13.11 mi12:35:231:44:257:585:31
8:05
0:00
25K
15.53 mi12:55:272:04:298:0120:04
8:17
+0:12
30K
18.64 mi13:21:452:30:478:0526:18
8:28
+0:11
20M
20.00 mi13:33:112:42:138:0711:26
8:25
-0:03
21M
21.00 mi13:42:032:51:058:098:52
8:52
+0:27
35K
21.75 mi13:48:162:57:188:096:13
8:19
-0:33
23M
23.00 mi13:58:503:07:528:1010:34
8:26
+0:07
24M
24.00 mi14:07:153:16:178:118:25
8:25
-0:01
40K
24.85 mi14:14:303:23:328:117:15
8:29
+0:04
25.2M
25.20 mi14:17:543:26:568:133:24
9:52
+1:23
Finish
26.22 mi14:26:213:35:238:138:27
8:18
-1:34

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

7:50 /mi

Average Pace

8:13 /mi

Slowest Pace

9:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:13:47

34% of race

Time at Steady Pace

2:09:20

60% of race

Time at Slower Pace

12:16

6% of race

Average Pace: 8:13 /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 mi11:15:3824:407:5624:40
7:56
#16109
10K
6.21 mi11:39:5949:017:5324:21
7:50
#15575
15K
9.32 mi12:04:451:13:477:5524:46
7:58
#15641
20K
12.43 mi12:29:521:38:547:5725:07
8:05
#15624
Half
13.11 mi12:35:231:44:257:585:31
8:05
#15667
25K
15.53 mi12:55:272:04:298:0120:04
8:17
#15659
30K
18.64 mi13:21:452:30:478:0526:18
8:28
#15429
20M
20.00 mi13:33:112:42:138:0711:26
8:25
#15235
21M
21.00 mi13:42:032:51:058:098:52
8:52
#15003
35K
21.75 mi13:48:162:57:188:096:13
8:19
#14969
23M
23.00 mi13:58:503:07:528:1010:34
8:26
#14797
24M
24.00 mi14:07:153:16:178:118:25
8:25
#14733
40K
24.85 mi14:14:303:23:328:117:15
8:29
#14656
25.2M
25.20 mi14:17:543:26:568:133:24
9:52
#14680
Finish
26.22 mi14:26:213:35:238:138:27
8:18
#14658
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi161095211521115831(Top 56%)5056(Top 41%)5056(Top 388%)
10K6.21 mi3.10 mi15575+5344885+3264885+32615174(Top 53%)4649(Top 38%)4649(Top 357%)
15K9.32 mi3.11 mi15641-664922-374922-3715831(Top 56%)5056(Top 41%)5056(Top 388%)
20K12.43 mi3.11 mi15624+174943-214943-2115545(Top 55%)4937(Top 40%)4937(Top 379%)
Half13.11 mi0.68 mi15667-434972-294972-2916543(Top 58%)5489(Top 45%)5489(Top 421%)
25K15.53 mi2.42 mi15659+84974-24974-215771(Top 56%)5174(Top 42%)5174(Top 397%)
30K18.64 mi3.11 mi15429+2304906+684906+6814558(Top 51%)4658(Top 38%)4658(Top 357%)
20M20.00 mi1.36 mi15235+1944827+794827+7913270(Top 47%)4131(Top 34%)4131(Top 317%)
21M21.00 mi1.00 mi15003+2324723+1044723+10412752(Top 45%)4013(Top 33%)4013(Top 308%)
35K21.75 mi0.75 mi14969+344717+64717+614334(Top 50%)4865(Top 40%)4865(Top 373%)
23M23.00 mi1.25 mi14797+1724652+654652+6512957(Top 46%)4251(Top 35%)4251(Top 326%)
24M24.00 mi1.00 mi14733+644649+34649+314014(Top 49%)4833(Top 40%)4833(Top 371%)
40K24.85 mi0.85 mi14656+774631+184631+1813330(Top 47%)4617(Top 38%)4617(Top 354%)
25.2M25.20 mi0.35 mi14680-244658-274658-2716403(Top 58%)6264(Top 51%)6264(Top 481%)
Finish26.22 mi1.02 mi14658+224678-204678-2014877(Top 52%)5405(Top 44%)5405(Top 415%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 56%
×21story building
+97ft-345ft

Overall

15831

Females

5056

F50-54

5056

5K→10K

3.1 - 6.2 mi

Top 53%
×5story building
+79ft-138ft

Overall

15174

Females

4649

F50-54

4649

10K→15K

6.2 - 9.3 mi

Top 56%
×3story building
+67ft-78ft

Overall

15831

Females

5056

F50-54

5056

15K→20K

9.3 - 12.4 mi

Top 55%
×5story building
+106ft-86ft

Overall

15545

Females

4937

F50-54

4937

20K→Half

12.4 - 13.1 mi

Top 58%
×2story building
+19ft-37ft

Overall

16543

Females

5489

F50-54

5489

Half→25K

13.1 - 15.5 mi

Top 56%
×4story building
+66ft-88ft

Overall

15771

Females

5174

F50-54

5174

25K→30K

15.5 - 18.6 mi

Top 51%
×9story building
+181ft-148ft

Overall

14558

Females

4658

F50-54

4658

30K→20M

18.6 - 20.0 mi

Top 47%
×5story building
+64ft-50ft

Overall

13270

Females

4131

F50-54

4131

20M→21M

20.0 - 21.0 mi

Top 45%
×8story building
+106ft-24ft

Overall

12752

Females

4013

F50-54

4013

21M→35K

21.0 - 21.8 mi

Top 50%
×7story building
+17ft-86ft

Overall

14334

Females

4865

F50-54

4865

35K→23M

21.8 - 23.0 mi

Top 46%
×5story building
+23ft-63ft

Overall

12957

Females

4251

F50-54

4251

23M→24M

23.0 - 24.0 mi

Top 49%
×6story building
+12ft-82ft

Overall

14014

Females

4833

F50-54

4833

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

13330

Females

4617

F50-54

4617

40K→25.2M

24.9 - 25.2 mi

Top 58%
×1story
+13ft-16ft

Overall

16403

Females

6264

F50-54

6264

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2story building
+22ft-21ft

Overall

14877

Females

5405

F50-54

5405

Passing Analysis

Category:
Athletes Passed
2670
Passed By
1219
Net Change
+1451
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16109
5K → 10K647113+534#16109#15575
10K → 15K183249-66#15575#15641
15K → 20K219202+17#15641#15624
20K → Half1760-43#15624#15667
Half → 25K185177+8#15667#15659
25K → 30K349119+230#15659#15429
30K → 20M22228+194#15429#15235
20M → 21M25220+232#15235#15003
21M → 35K7137+34#15003#14969
35K → 23M20735+172#14969#14797
23M → 24M10036+64#14797#14733
24M → 40K11134+77#14733#14656
40K → 25.2M2650-24#14656#14680
25.2M → Finish8159+22#14680#14658
TOTALS26701219+1451
📊

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